diff --git a/digital-currency/bitcoin/pom.xml b/digital-currency/bitcoin/pom.xml
index 6c4d888..f94cb2a 100644
--- a/digital-currency/bitcoin/pom.xml
+++ b/digital-currency/bitcoin/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.javamoney.shelter</groupId>
 		<artifactId>javamoney-digital-currency</artifactId>
-		<version>0.4-SNAPSHOT</version>
+		<version>0.4</version>
 	</parent>
 	<artifactId>javamoney-bitcoin</artifactId>
 	<name>JavaMoney Bitcoin</name>
@@ -62,7 +62,6 @@
       <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-surefire-plugin</artifactId>
-          <version>2.12.4</version>
           <configuration>
               <includes>
                   <include>**/*Spec.java</include>  <!-- For Spock Specs (which are actually .groovy!?) -->
@@ -71,6 +70,42 @@
           </configuration>
       </plugin>
 		</plugins>
+		<pluginManagement>
+			<plugins>
+				<!--This plugin's configuration is used to store Eclipse m2e settings only. It has no influence on the Maven build itself.-->
+				<plugin>
+					<groupId>org.eclipse.m2e</groupId>
+					<artifactId>lifecycle-mapping</artifactId>
+					<version>1.0.0</version>
+					<configuration>
+						<lifecycleMappingMetadata>
+							<pluginExecutions>
+								<pluginExecution>
+									<pluginExecutionFilter>
+										<groupId>
+											org.codehaus.gmaven
+										</groupId>
+										<artifactId>
+											gmaven-plugin
+										</artifactId>
+										<versionRange>
+											[1.4,)
+										</versionRange>
+										<goals>
+											<goal>compile</goal>
+											<goal>testCompile</goal>
+										</goals>
+									</pluginExecutionFilter>
+									<action>
+										<ignore></ignore>
+									</action>
+								</pluginExecution>
+							</pluginExecutions>
+						</lifecycleMappingMetadata>
+					</configuration>
+				</plugin>
+			</plugins>
+		</pluginManagement>
 	</build>
 	<dependencies>
 		<dependency>
diff --git a/digital-currency/bitcoin/src/main/java/org/javamoney/shelter/bitcoin/provider/BitcoinCurrencyProvider.java b/digital-currency/bitcoin/src/main/java/org/javamoney/shelter/bitcoin/provider/BitcoinCurrencyProvider.java
index f3c7795..5f06efe 100644
--- a/digital-currency/bitcoin/src/main/java/org/javamoney/shelter/bitcoin/provider/BitcoinCurrencyProvider.java
+++ b/digital-currency/bitcoin/src/main/java/org/javamoney/shelter/bitcoin/provider/BitcoinCurrencyProvider.java
@@ -1,26 +1,36 @@
+/*
+ * Copyright (c) 2013, 205, Werner Keil and others by the @author tag.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.javamoney.shelter.bitcoin.provider;
 
 import javax.money.CurrencyContext;
 import javax.money.CurrencyContextBuilder;
 import javax.money.CurrencyQuery;
 import javax.money.CurrencyUnit;
-import javax.money.MonetaryAmountFactoryQuery;
-import javax.money.MonetaryAmountFactoryQueryBuilder;
-import javax.money.MonetaryContext;
 import javax.money.spi.CurrencyProviderSpi;
 import java.util.Collections;
-import java.util.Currency;
 import java.util.HashSet;
 import java.util.Set;
 
 import org.javamoney.moneta.CurrencyUnitBuilder;
-import org.javamoney.moneta.Money;
 
 /**
  *  A clueless attempt at a BitcoinCurrencyProvider based on (out of date?) code
  *  in the Moneta User's Guide.
  *
  * @author Sean Gilligan
+ * @author Werner Keil
  */
 public final class BitcoinCurrencyProvider implements CurrencyProviderSpi {
 
@@ -61,4 +71,9 @@ public Set<CurrencyUnit> getCurrencies(CurrencyQuery query){
         return Collections.emptySet();
     }
 
+	@Override
+	public boolean isCurrencyAvailable(CurrencyQuery query) {
+		return !getCurrencies(query).isEmpty();
+	}
+
 }
\ No newline at end of file
diff --git a/digital-currency/pom.xml b/digital-currency/pom.xml
index b5f3d15..7263053 100644
--- a/digital-currency/pom.xml
+++ b/digital-currency/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.javamoney.shelter</groupId>
 		<artifactId>javamoney-shelter</artifactId>
-		<version>0.4-SNAPSHOT</version>
+		<version>0.4</version>
 	</parent>
 	<artifactId>javamoney-digital-currency</artifactId>
 	<packaging>pom</packaging>
diff --git a/groovylang-support/javamoney-spock/gradlew.bat b/groovylang-support/javamoney-spock/gradlew.bat
index aec9973..8a0b282 100644
--- a/groovylang-support/javamoney-spock/gradlew.bat
+++ b/groovylang-support/javamoney-spock/gradlew.bat
@@ -1,90 +1,90 @@
-@if "%DEBUG%" == "" @echo off
-@rem ##########################################################################
-@rem
-@rem  Gradle startup script for Windows
-@rem
-@rem ##########################################################################
-
-@rem Set local scope for the variables with windows NT shell
-if "%OS%"=="Windows_NT" setlocal
-
-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
-
-set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
-set APP_BASE_NAME=%~n0
-set APP_HOME=%DIRNAME%
-
-@rem Find java.exe
-if defined JAVA_HOME goto findJavaFromJavaHome
-
-set JAVA_EXE=java.exe
-%JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
-
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:findJavaFromJavaHome
-set JAVA_HOME=%JAVA_HOME:"=%
-set JAVA_EXE=%JAVA_HOME%/bin/java.exe
-
-if exist "%JAVA_EXE%" goto init
-
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:init
-@rem Get command-line arguments, handling Windowz variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-if "%@eval[2+2]" == "4" goto 4NT_args
-
-:win9xME_args
-@rem Slurp the command line arguments.
-set CMD_LINE_ARGS=
-set _SKIP=2
-
-:win9xME_args_slurp
-if "x%~1" == "x" goto execute
-
-set CMD_LINE_ARGS=%*
-goto execute
-
-:4NT_args
-@rem Get arguments from the 4NT Shell from JP Software
-set CMD_LINE_ARGS=%$
-
-:execute
-@rem Setup the command line
-
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
-
-@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
-
-:end
-@rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
-
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/pom.xml b/pom.xml
index f940ecb..28f2306 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,14 +3,14 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.javamoney.shelter</groupId>
 	<artifactId>javamoney-shelter</artifactId>
-	<version>0.4-SNAPSHOT</version>
+	<version>0.4</version>
 	<packaging>pom</packaging>
 	<name>JavaMoney Shelter</name>
 	<description>A shelter for new ideas and modules to be adopted, e.g. via Adopt-a-JSR </description>
 	<parent>
 		<groupId>org.javamoney</groupId>
 		<artifactId>javamoney-parent</artifactId>
-		<version>1.0-RC1</version>
+		<version>1.0-RC2</version>
 	</parent>
 	<url>http://javamoney.github.io/shelter.html</url>
 	<inceptionYear>2013</inceptionYear>
@@ -21,8 +21,8 @@
 		<junit.version>4.8.2</junit.version>
 		<slf4j.version>1.6.1</slf4j.version>
 		<!-- JSR versions -->
-		<jsr.version>1.0-RC1</jsr.version>
-		<javamoney.version>0.6-SNAPSHOT</javamoney.version>
+		<jsr.version>1.0-RC2</jsr.version>
+		<!--  javamoney.version>0.6-SNAPSHOT</javamoney.version -->
 	</properties>
 	
 	<repositories>