Removed general unit
Added texture for aat
Added missilelauncher (textures + factory)
Revert "Removed general unit"

This reverts commit f32b45c6645967f55bd5ec53303d106679e0d797.
Removed white background from missilelaunchers
Increased building menu size for missilelauncher
Merge branch 'master' of https://github.com/GL-MPRI-2014/GL_MPRI_2014