changed gtest include path to point to local version
updated doc for built-in GTest
Added errorMinimizers with ICP's covariance estimation
put back proper name tag to output normals in VTK
Merge branch 'master' of github.com:ethz-asl/libpointmatcher
Merge remote-tracking branch 'remotes/origin/unstable'
documented PLY support in source
fixed bug when no descriptors in PLY file
added check for PLY binary files
updated release notes
better support of descriptors in PLY
added some more descriptors to PLY support
added descriptors to CSV
exporting of descriptors in CSV support
fixed bug with files containing no descriptors and updated release notes
fixed bug in CSV file output and added support for VTK legacy unstructure_grid data type
[timer] use CLOCK_PROF on NetBSD
resolve issue #27
Fix for issue #29
Merge branch 'fix-bsd-clock' of https://github.com/pierriko/libpointmatcher into pierriko-fix-bsd-clock