Apply some best practices to Translator Service

[Yılmaz]

• Translator service should use APC cache on production environment. This can be adjustable on merge configuration process.
• Translator should use php array adapter for simplicity. Converting to poedit or remote will not be a difficult task. Mac version of the poedit is a crapware, also installing a 3rd party desktop application to convert translations is pointless.
• Provide several sample translations in /languages folder.
• Create a controller and related action to change language, store & lookup selected language in session storage for now.
• Write documentation
• Provide a correct way for disabling translation cache on development environment.