util: Remove unused version of moveViewTowardsPoint
util: Remove BRAWL_UNUSED

You can just comment out the names of unused parameters,
and the compiler won't warn about them.
Put names in Util directory into namespace 'util'
util: Remove broken getRandomValue function
Format source code with astyle
Add --delete-empty-lines option to runastyle.sh
Remove excess spaces in source files
Common/Map: Make GRID_SIZE a member of Layer
Common/Map: Rename Layer::GRID_SIZE to Layer::TILE_SIZE