Updated the Doxygen doc for 2.0
Updated the installation guide for 2.0
Merge branch 'version/2.0' into HEAD

* version/2.0:
  Updated the installation guide for 2.0
  Updated the Doxygen doc for 2.0
  Added the Doxygen documentation
  Added scripts documentation
  Added docs/index.html and use rawgit in README.md
  typo
  Include the CSS for the eHive HTML doc
  Doc update to please Doxygen
  bugfix: in each branch README.md will have to refer to its own version of docs
  adding reformatted install.html and README.md links to HTML documents (relying on htmlpreview functionality)

Conflicts:
	docs/hive_schema.html
Updated the script documentation for 2.1
Updated the Doxygen doc for 2.1