PKMNsim#: typo in main SWIG interface file
qt4: added QMessageBox subclass for "About" message
Added pkmnsim-about

* Very basic graphical "About" box to be used as Start Menu shortcut
* No formatting yet
cmake: added pkmnsim-about to NSIS template
Coding convention consistency

* All private variables and functions start with _
* All "new_" parameters removed
Merge branch 'about'
Merge branch 'master' into rpokesav_integration
AboutMessageBox: added Retro Pokesav commit