New: trajkovic and hedley detector 2D
New: port of Trajkovic and Hedley detector to pure geometry
Fix: a silly bug in normals diff computation
- A new interface inside search::FlannSearch to FLANN's multiple
randomized trees for high-dimensional searches, including a code example
in the class doxy.
- Made all typedefs of search::FlannSearch public.
Add: pcl_ni_trajkovic application to detect Trajkovic 2D/3D points from OpenNi device
CMake fixes for standard Android.mk configurations.
Fix: removal of unused argument and normals_->resize statement
Fix a bug in pcl::getApproximateIndices()
Relax constness constraints

The input clouds in both versions of pcl::getApproximateIndices() will
not be modified inside the function, so we could use ConstPtr's.
Add a function to copy data between points of different types
Add a unit test for `copyPoint()` function
Update `copyPointCloud()` functions to use `copyPoint`
Update various PCL classes to use `copyPoint()`
fix #484

Deprecated addCoordinateSystem doesn't compile.
VTK fixes for Android cross compile.
Merge upstream.
VoxelGrid : Possibility to specify a minimum number of points per voxel
transform_point_cloud now keeps rgb values when using a pcd file with an rgba field
Fixed to select correct library under 32 bit.

Library path was hard coded and this caused a problem that incorrect library file was selected under 32 bit environment.
This commit add some codes to choose corresponding library file according to the build environment.
Fixed the 'NCVHaarObjectDetection.hpp No such file or directory' error when trying to use pcl gpu people.