search::KdTree accepts different types of KdTree
Add: ability to add/remove several coordinate systems

This was a requested feature on the mailing list
Update: set ancient version of add/removeCoordinateSystem to deprecated
Fix: deprecated message
Adding bearing angle image to pcl
Bug #294: Completed quoting for parameters of some CMake commands

A Wiki article pointed out that whitespace will only be preserved for parameters
in CMake commands if passed strings will be appropriately quoted or escaped.
http://cmake.org/Wiki/CMake/Language_Syntax#CMake_splits_arguments_unless_you_use_quotation_marks_or_escapes.

Quoting was added so that more places should also handle file names correctly
which contain space characters eventually.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Add: new PCLContextItem Markers to mark several points at once
Add: method to mark a list of points at once

This is faster then looping on markPoint since all the markers are placed in the
same actor and rendered only once.
Split Travis task into build and test
Fix compiler error from clang in C++11 mode

* ISO C++11 does not allow access declarations; use using declarations
  instead
Clean up octree_pointcloud_adjacency.h header

Changes include:

  * Fix style to comply PCL guidelines
  * Remove unused typedefs
  * Rearrange typedefs and using declarations
  * Strip trailing whitespaces
  * Reformat documentation comments
Fix 'undefined reference' linker errors

A simple program with the main function consisting only of one line:

pcl::octree::OctreePointCloudAdjacency<pcl::PointXYZRGBA> octree (0.5f);

will fail to be linked with a number of 'undefined reference' errors
like this:

    octree_pointcloud_adjacency.hpp:48: undefined reference to `pcl::octree::OctreePointCloud<pcl::PointXYZRGBA, pcl::octree::OctreePointCloudAdjacencyContainer<pcl::PointXYZRGBA, pcl::PointXYZRGBA>, pcl::octree::OctreeContainerEmpty, pcl::octree::OctreeBase<pcl::octree::OctreePointCloudAdjacencyContainer<pcl::PointXYZRGBA, pcl::PointXYZRGBA>, pcl::octree::OctreeContainerEmpty> >::OctreePointCloud(double)'

This commit adds an include that pulls in template definitions for the
Octree components, therefore allowing the compiler to instantiate
appropriate templates as needed.
Merge pull request #81 from fran6co/patch-3

search::KdTree accepts different types of KdTree
Merge pull request #198 from ZhuangYanDLUT/master

Adding bearing angle image to pcl
Merge pull request #401 from nizar-sallem/several_coordinate_system

Add: ability to add/remove several coordinate systems
Merge pull request #447 from taketwo/split-build-and-test-on-travis

Split Travis task into build and test
Merge pull request #431 from elfring/Complete_quoting_for_parameters_of_some_CMake_commands

Complete quoting for parameters of some CMake commands
Merge pull request #439 from nizar-sallem/mark_points

Mark points
Merge pull request #448 from taketwo/octree-pointcloud-adjacency

Bugfixes and clean-up in `OctreePointCloudAdjacency`
Fix error in 'test/CMakeLists.txt' introduced by #431