Support pure static methods declared in type other than parameter type

[GoogleCodeExporter]

For a given type, the user should be able to specify methods to call including 
unary static methods declared in other types. 

Will either have to:
* separate the list of pure methods from the list of methods to call
* change the format of the purity file to allow the assembly qualified type of 
the declaring method

Original issue reported on code.google.com by [email protected] on 16 Mar 2013 at 11:55