Merge pull request #11 from betweenbrain/develop

Merge develop
Removing .idea
Removing zip
Merge pull request #12 from betweenbrain/develop

Adds optional method variable for fooAjax methods
Update README.md
Update README.md
Refactoring code
DRY
Sets JSON header when using JSON format
Adds language file
Initial language file support
Adds translatable error messages
Updates manifest to use language constants
Adds sys.ini langiage file
Adds admin language files
Implements use of jpath_base
Updates language strings
Adds plugin error response
Adds plugin error response
Corrects file docBlock
Updates version to 3.1