Google test macros a supposed to have expected value as the first
parameter and actual value as the second.

Add: morphological filters operate on the z dimension (replaces #521)

Add threePlanesIntersection

Set RGB color handler as default in pcl_viewer

Update contributing guide

Swapped "Pull requests" and "Bug reports" sections to give the former
more priority, deleted "Suggested process" section (moved it to the
project Wiki).

Add a contributing guide

Fix compiler warnings

This commit adds an auxiliary point type `_PointXYZLAB` (similarly to
how it is done for native PCL point types) in order to fix the invalid
offset warning:

> gicp6d.h:78:1: warning: offset of on non-POD type 'pcl::PointXYZLAB' [-Winvalid-offsetof]

> grid_minimum.h:83:9: warning: field 'divb_mul_' will be initialized after field 'min_points_per_grid_' [-Wreorder]

Change non-standard logical OR comparison of Pascal type syntax to C (closes #558)

Change non-standard logical OR comparison of Pascal type syntax to C.

Add: markPoints with float coordinates for u and v

New tutorial: Interactive ICP

New tutorial: Matrix transform

Disabling SSE ensures distcc works

Fix typo to match standard PCL_ERROR message

Add descriptorSize for various features in point_types.hpp

fixing FindGlew on mavericks

updated assembleRegion() in region_growing_rgb.hpp to speed up algorithm

segment deletion.

Fixing missing addData method in OctreePointCloudOccupancy

Modified interactor style: display camera parameters

Added dependency check to pcl_cuda_io