Merge pull request #108 from sbesson/103_unrebased_output

Improve scc unrebased-prs output
Drop list of subcommands from the Readme
Additional fixes in the README
Add recommendation as per Helen's suggestion
Merge pull request #109 from sbesson/99_readme

Rewrite readme
Add new unit test for testing restructured text validity using restview
Fix README hyperlinks
Add restview to the requirements list for running tests in the README
merge master -D org -I include -E exclude: PR 110 (Fix README hyperlinks)