initial take on polyvf example - does not use samples yet
initial take on conjugate fields - no example yet
Merge branch 'master' of https://github.com/libigl/libigl

Conflicts:
	include/igl/cross_field_missmatch.cpp
	include/igl/edge_topology.cpp
	include/igl/edge_topology.h
conjugate example, fixed some #HEADER_ONLY errors
still missing : comments for all files
Merge branch 'master' of https://github.com/libigl/libigl

Conflicts:
	tutorial/cmake/FindLIBCOMISO.cmake
updated conjugate example to show quad meshes and planarized conjugate mesh
Merge branch 'master' of https://github.com/libigl/libigl

Conflicts:
	tutorial/cmake/FindLIBCOMISO.cmake
Merge branch 'master' of https://github.com/olkido/libigl

Conflicts:
	tutorial/cmake/FindLIBCOMISO.cmake
end of main examples, including angle bound - will polish later
Merge branch 'master' of https://github.com/libigl/libigl
Merge commit 'a3c17ec2eb057e3a8f779d448cc0cf9bd0e684ac'
small changes to make it compile with gcc 4.7