- 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.
CMake fixes for standard Android.mk configurations.
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.
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.
Fixed a compiling issue in the gpu people tutorial
Add selection hint to pcl_viewer help
Fix "tests" target in test/CMakeLists.txt
Add macros to check equality/nearness of various data fields in PCL points
Update 'test_io.cpp' to use new test macros
Merge pull request #359 from taketwo/fix-get-approximate-indices

Possible bug in `pcl::getApproximateIndices()`
Merge pull request #434 from rbregier/master

VoxelGrid : Possibility to specify a minimum number of points per voxel
Merge pull request #435 from andersgb1/master

A new interface to FLANN's multiple randomized trees for high-dimensional (feature) searches
Merge pull request #456 from chadrockey/android

Android fixes for taka-no-me's Android toolchain and exporting Android.mk files