Make forcegreeting no-op for disabled references (Fixes #2093)
Fix invalidated iterator
Experimental, compiles and runs but crashes in some exit scenarios.
Add missing files.
Fix crash when multiple scenewidgets were closed.  BtOgre was destroying resources each time.
Remove unused code.  Move the cleanup of global resources used by the PhysicsEngine to PhysicsManager.
Include string header for gcc.
new version number and updated changelog
Merge branch 'openmw-33'
Merge remote-tracking branch 'scrawl/master'
Fix memory leak when multiple documents in 3D edit.  Support multiple physics engine per document.
Merge branch 'master' into mouse-picking-physics
Remove files no longer used, reverting to OEngine.
Removed sending of travis notifications to my email.

Signed-off-by: Lukasz Gromanowski <lgromanowski@gmail.com>
Fix morrowind data files detection for custom install locations
Make Restore/Damage Attribute/Skill effects continuous
Merge remote-tracking branch 'miroslavr/master'
Added proper slow fall effect mechanics.
updated credits file
Merge branch 'master' of https://github.com/OpenMW/openmw