Copy generated tutorials to Git repository folder (instead of moving)

With `mv` the following error occurs:

mv: cannot move `/home/travis/build/PointCloudLibrary/pcl/build/doc/tutorials/html' to `/home/travis/build/PointCloudLibrary/pcl/build/doc/doxygen/html/tutorials/html': Directory not empty
Merge pull request #779 from taketwo/travis-cp-instead-of-mv

Copy generated tutorials to Git repository folder (instead of moving)
Set compute3Dcentroid last component to 1
Merge pull request #781 from VictorLamoine/master

Set compute3Dcentroid last component to 1
Updated PCL compilation instructions with details about compiling and
using tests. Addresses #784, with thanks to @taketwo.
Merge pull request #786 from mohawkjohn/make_tests_doc_update

Updated PCL compilation instructions for contributors wanting to run `make tests`
Added LCCP algorithm as well as an example

small changes to the example

added exit code on getSVAdjacencyList error

Fixed formatting error using Eclipse formatter

deleted spaces for template arguments

fixed error when NO_PRECOMPILE=ON

Replaced template specializations in supervoxel_clustering.hpp by declarations.
Added the template specializations to the cpp file.

Replaced in-class dotproduct,crossproduct, norm, normalize functions by Eigen functions

small format error correction

removed an extra space

[Main program]
added some return codes for errors as well as doxygen comments.

[Example Code]
removed part of the code to convert rgb and depth png file to a pointcloud
Added callback to increase/decrease the scale of the normals in the viewer window using 4 and 5

added more return codes to the main module

Added \ingroup to supervoxel and lccp headers.

made simple setter/getter functions inline.
Changed name of removeNoise to removeSmallSegments.

Changed all files to show the new version of the copyright template.
Removed -p and -pn options from example.
Added -nonormals flag to example.
Moved inline function definitions to the LCCP class declaration.

small changes

corrected some formatting errors