Changed governance doc to markdown format for ease of linking and viewing.
Merge pull request #465 from willum070/governance

Changed governance doc to markdown format for ease of linking and viewing
Add submission number and phase number to metadata available to scoring program.
Merge pull request #466 from cpoulain/master

Add submission number and phase number to metadata available to scoring ...
cg
Merge branch 'master' of https://github.com/codalab/codalab