Remove unused variables in geometry
Remove unused variables in registration
Remove unused variables in io
Remove union warning in octree
Remove unused variables in search
Remove unused variables in filters
Ignore deprecation warnings when testing deprecated functions
Initialize variables to suppress compiler warning
Merge pull request #152 from rbrusu/master

Added missing map.h include in visualization
Merge pull request #151 from jspricke/fix-warnings

Fix all warnings when using gcc 4.8.1
Add PointXYZRGBNormal to PCL_ONLY_CORE_POINT_TYPES

Needed since 96f1c162e7f6dfb2aa6da7c2bd0b4fd22ae615f4
Don't run the Brisk unit test when there is no SSE4.1 available
Simplify Travis build script

- Compile using minimal build flags because of segfaults when using
  processor optimized builds.
Merge pull request #154 from rbrusu/master

Added 3rd party library linking as user code might include our headers
Merge pull request #153 from jspricke/travis-cmake-test

Fix Travis build
enable rgb extraction when texture saving is enabled
Fix format string bug, thanks clang
Fixed build problem with vtkImageSlice in image_viewer.h
Merge pull request #159 from MOZGIII/master

Fix for #158
Fixed typos, clarified a messy sentence, added wikipedia link