Added graph::importPoses().
Can now have a ground truth published with SensorData (filled optionally by CameraImages classes).
Increased database closing time performance when the database is not saved.
Added ParametersToolBox widget in DatabaseViewer for core parameters (refactoring done to make easy access to all rtabmap parameters in DatabaseViewer).
Added Parameters::getType(key).
Added Transform::interpolate() to interpolate between two transforms (SLERP)
Updated pf_filter.m and added test_pf_filter.m MATLAB scripts (making easier to compare with a ground truth)
UPlot: can now save all curve data of a figure in one action (see right-click on legend area->"Copy all curve data to clipboard")
Libraries are installed in lib directly with symbolic links, not in lib/rtabmap-0.8. Removed the need of RPATH in cmake.
Saving variance of each link in database (new field Link.variance). The variance is used to generate the constraint information matrices for TORO optimization.
ICP: computing variance instead of fitness.
ICP3: added correspondences ratio parameter
Added OdometryInfo class
Refactoring: renamed depth2d stuff to laserScan. rtabmap::Memory and rtabmap::Signature classes (no more distinct neighbor, loop closure or child loop closure links, only links with different types)
