Add a README file describing the requirements and how to get and build OSS
Remove tabulations (use only spaces) + format at 80 chars/line
Add OSS introduction + website + contact info to README
Add dependencies section + clean up
Add Dashboard info to README
Making GMock an optional depedency in the README
Add some section headers and formatting to README

Mostly just added some section formatting to the README, and some blank
sections that should be filled out.
Added linux build instructions to README

* Added install instructions for linux
* Added text for the Getting OpenSurgSim section
* Moved dependencies to the end, as an appendix (I think this is better)
Fixed some spelling and spacing in README
README: Clean up compiler requirement in windows section
Pick boost 1.55 for install instruction in README

The meta package libboost-all-dev is messed up on Ubuntu 14.04, it
doesn't install. However, the 1.55 version works fine for some reason.
Update project description, reorganize Windows instructions

* Updated the project description to be more current, and describe what the
  project is.
* Reorganized the windows instructions to be clearer, in my opinion.
* Added FreeGlut as an optional dependency.
* Spellchecked
Remove unused variable
Merge branch 'fix/unused-variable-rendertest' into 'master'

Fixes an unused variable warning

Merged-on: https://www.assembla.com/code/OpenSurgSim/git/merge_requests/1123583
Turn off warnings as errors by default

To make things easier for un-supported platfroms, keep warnings as
warnings by default, expecially as we near a release. This, for example,
allows a new user on Ubuntu 14.04 to build OSS. There are a couple
warnings there.
Fixed OSG_ROOT/OSG_DIR discrepancy in README

* reformated to 80 column line lenghts
* changed Windows to Microsoft Windows.
* put the boost package back to the generic libboost-all-dev as this
  does in fact work on Ubuntu.
Merge branch 'feature/addREADME' into 'master'

Add README

+1: haizhouW

Merged-on: https://www.assembla.com/code/OpenSurgSim/git/merge_requests/1106933
Merge branch 'fix/default-warnings' into 'master'

Turn off warnings as errors by default

Merged-on: https://www.assembla.com/code/OpenSurgSim/git/merge_requests/1125013