0.4.1

• params[:format] is now automatically set to 'json', so it no longer needs to be defined in each method.
• Fixed a lot of styling issues thanks to Rubocop.
• check_login and check_create now use case/when statements instead of elsifs.
• check_create no longer returns anything.
• Update minimum Ruby version to 2.1, for refinements.
• Fix $namespaces hash syntax.
• Generally improved if statement syntax.
• Generally shortened a lot of code by using better syntax.