Merge remote-tracking branch 'refs/remotes/origin/develop'

Small bug fix, speed improvements.

Version 0.7.1, 12.05.2015:
- Fixed bug when using CMVS
- Improved speed of Windows version
- Added multithreading in computing matches on Mac OS X (using TBB)
- Surfaces with textures (OBJ file format) are now loaded with AssImp
- "Export to CMPMVS" renamed to "Export to external MVS", MeshRecon format added

Initial commit