General:
     -Reorganized files
     -Added configuration file (database credentials, locale, etc.)
     -Other minor changes

Content:
     -Added localisation support
     -Added 'Home page' view, controller and model
     -Added theme support
     -Added a default Materna theme (including CSS, Textures, etc.)
     -Content is still work in progress

Utilities - debugging:
     -Added a new debug message channel in the DbgHelper class for SQL related debug messages
     -Added function printDbgMsgAndDie() which halts execution after printing the debug message (for critical errors)

Utilities - SQL:
     -Added an SQL utility for simplifying working with databases (connecting, querying and disconnecting)