Add states example, oddly nunfunctioning (refs #113)
Merge remote-tracking branch 'origin/master' into states_example
Merge branch 'master' into states_example
Adapt CMakeLists.txt to include further studies extension to tutorial 2.2. Add the further studies target for tutorial 2.2. Add fragment and vertex shader for further studies extension of tutorial 2.2.
Changes lines to points in states example (refs #113)
Merge pull request #132 from hpicgs/states_example

States example
Simplify names in CMakeLists.txt files. Include iostream header.
Add and remove API class declarations
Reorganize arcsynthesis tutorial.
Adapt CMakeLists.txt to reflect change in tutorial structure.
Add CPP file for 3rd chapter 1st tutorial. Move shaders to comply to new tutorial structure. Adapt CMakeLists.txt files to reflect changes and to inlcude new tutorial.
Remove old shader files after relocation.
Introduce wrapper for glBufferSubData() in glow::Buffer.
Add API declaration for glow::AbstractArray
Merge remote-tracking branch 'origin/master' into iss134
Add AbstracArray alternative for setSubData().
Finish first version of tutorial 3.1, still work in progress.
Merge remote-tracking branch 'origin/iss134' into mckesson-tutorial-examples
Finalize glow version of tutorial 3.1.
Add initial sources for tutorial 3.2 and adapt CMakeLists.txt to include tutorial 3.2.