Refactoring code
Merge remote-tracking branch 'origin/develop' into develop

Conflicts:
	admin/ajax.php
	site/ajax.php
DRY
Sets JSON header when using JSON format
Adds language file
Initial language file support
Adds translatable error messages
Removes IDE file
Merge pull request #13 from betweenbrain/language-string

Add language support
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
Merge remote-tracking branch 'origin/develop' into develop
Corrects file docBlock
Updates version to 3.1
Merge branch 'master' into develop

Conflicts:
	ajax.xml
Refactoring code