search::KdTree accepts different types of KdTree
fixed const iterator errors (win64)
Fix degenerated rotation axis bug when normal is parallel to x axis.
Remove the redundant scene_search_tree_.
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
Fix "no member named 'at'" error in clang 3.5.0
fix compilation of 3d_rec_framework after metslib change
Add missing include in 'search/kdtree.h'

Without this include compilation with `PCL_NO_PRECOMPILE=ON` fails.
Add missing include in 'sample_consensus/sac_model_circle3d.h'

Without this include compilation with `PCL_NO_PRECOMPILE=ON` fails.
Made rejectors work with ICP
Removed old comments
Propagated changes to JointICP
Added generic setNormals and clone to CorrespondenceEstimation, propagated to JointICP and ICP
Added comments
Add missing include in 'filters/frustum_culling.h'
Add missing include guards in 'recognition/hv/hv_go.hpp'
Add a new CMake target "tests"

This commit adds a new custom target called "tests". In contrast with
the standard "test" target it has all the test binaries listed as its
dependencies. Consequently, a single command `make tests` is sufficient
to build all tests (and nothing else) and run them.
Enable verbose output for "tests" target

This commit adds "-V" switch to the invocation of `ctest` in the "tests"
target. Doing so allows us to see the output of individual tests in
addition to the summary provided by `ctest`.