Re-committing some stuff that got overwritten somewhere
- Disabled dragging on inactive buildings
- Attempt at pinch zoom
     - Zoom functionality works, can set min/max in editor
     - Unsure if pinch detection works
Merge branch 'master' of https://github.com/kuvick/DOEGame
Have briefings transition into loading screen
Merge branch 'master' of https://github.com/kuvick/DOEGame