Fix build issues for Visual Studio 2008
build: Fix issue with windows library suffixes

Currently when using PCLConfig.cmake the libraries are searched with a
suffix of either _debug or _release.  When building with either
RelWithDebInfo or MinSizeRel these are not preoprly setup in the
CMakeLists.txt

As result when building with RelWithDebInfo you get libraries named
pcl_io.dll

but the PCLConfig.cmake looks for pcl_io_release.dll

This patch adds the release suffix to both RelWithDebInfo and
MinSizeRel to solve the problem.
build: Improve definition of uint8_t fix
build: No need for stdint.h header

Using boost definitions for uint8_t via pcl_macros.h

This allows compilation on visual studio 2008 which does not
provide stdint.h
Merge pull request #721 from VictorLamoine/sandbox

Corrections in matrix transform tutorial
Merge pull request #714 from gcasey/buildfixes

Windows build fixes
Fix for issue #639 - handle transformed non-finite points correctly
Minor formatting
Typo fix
Merge pull request #723 from jpapon/adjacency_finite_fix

Adjacency finite fix
Add new interface to getShapeActorMap
Merge pull request #725 from Logrus/master

Add new interface to getShapeActorMap
Add cmake option to choose HTML file suffix for Sphinx
Update Sphinx layout.html file
Add Sphinx CSS stylesheets
PCLVisualizer: save and restore camera information

Press ctrl + s to save camera parameters and ctrl + r to restore the
saved camera parameters.

If a camera file is specified with "-cam" option or pcd file(s) is(are)
available in the command line, the camera parameters will be written to
the corresponding file and can be restored later from that file.
In this case, PCLVisualizer will restore camera parameters automatically
from the corresponding file when the pragram restarts with the same
command line input.
Merge pull request #729 from taketwo/add-sphinx-cmake-options

Add cmake option to choose HTML file suffix for Sphinx
Merge pull request #730 from taketwo/update-sphinx-templates

Update sphinx templates
Merge pull request #703 from xiangxw/pcl_viewer_remember_camera_position

PCLVisualizer: save and restore camera information
Replace gtest with sytem version

- Add new FindGtest.cmake to find installed versions.
- Add libgtest-dev for Travis