Fix collision calculation of  index offset when using multiple geometries
Merge pull request #80 from ThunderBeastGames/JME-URHO3D-FIXCOLLISIONSHAPE

Fix collision calculation of index offset when using multiple geometries
Fix how tolua++ renaming is being documented in Lua generated API.
Check for input focus before applying camera presets in editor. Closes #81.
Update credits.
Attempt to setup CI build using Travis.
Setup Travis CI.
Setup Travis CI. Add missing doxygen package and correct build path.
Setup Travis CI. Exclude Clang build. GCC build appears to be OK now.
Added ambient occlusion LitSolid permutations. These read the emissive texture and use the second texcoord, like lightmapped permutations. Closes #79.
Attempt to automate deployment of site documentation using Travis CI.
Change Travis CI secret. Bypass build step for quick build test.
Test site documentation deployment using Travis CI.
Change Travis CI secret for one last time.
Revert back CI build setting.
Update Rakefile to supply GIT credential at the correct directory.
Skip documentation update if CI build is invoked due to a pull request.
Changed adding Resource and Package files to be able to specify the location in the Vector for search priority when calling GetFile or GetResource
Added the ability to specify whether to search Package Files or Resource Dirs first when calling GetFile or GetResource
Added the functionality to angelscript and lua. Lua does not contain the ability to add resource dirs and packages, so that was not modified.
Add FindNearestPoint() to NavigationMesh class and expose it to script interfaces.
Skip documentation update if CI build is invoked not on master branch.

Also:
- Setup doxygen configuration on the fly to use minimal theme and to produce SVG instead of PNG.
- Change how the GH_TOKEN is supplied as the GIT version in Travis VM (Ubuntu) does not seem to read the credentials from file store correctly.
- Only generate site documentation after the CI build test has passed.
- Add Ubuntu PPA to install a more recent version of Doxygen.