Don't crash on OpenGL error.
Added .gitignore
Removed missing includes from main header files
getObjectsInRect is way to slow to be of any use.
getObjectsInRect is way to slow to be of any use.
Decrease Overhead by calling update explicitly.
getRange shouldn't call update either.
End is last element + 1
Debug stuff *sigh*
Merge remote-tracking branch 'upstream/master'
constexpr in Vec2, Vec3 and Angle now preserves behaviour with C++14
Angle::Atan2, Angle::Asin and Angle::Acos are no longer constexpr

I changed that because it seems that std::atan2, std::acos and std::asin
are only constexpr when compiling with GCC.
SkipList class removed.
Merge remote-tracking branch 'upstream/master'
Compiling now working with clang 3.3. SST::decorateVal() still fails