refactoring
Merge branch 'chance_crafts_radar'
Merge branch 'chance_hyperwave'
Merge branch 'fix_alien_base_id_numeration'
Merge branch 'fix_crash_site_id_generation'
Merge branch 'tank_loading'
Merge branch 'view_distance'
Merge branch 'opt_trjectory'

Conflicts:
	src/Battlescape/TileEngine.cpp