Added champion vision handling.
TODO : the code is a bit dirty, make it proper.
Wooops, lua config stuff...
Merge pull request #94 from kalouantonis/master

Implemented logger system and changed C style arrays in Spell class to C++11 std::array.
Fixed vision of dead characters

- Caused segmentation faults in GDB at some tests, but not when ran
normally. @Elyotna
- Units now do not give vision when they're about to be removed or dead.
- Fixed spelling mistake in bat file
- Added bat to just spawn the game (when you're debugging)
As instructed, removed dynamic cast on this