Add static close page.
Remove un-needed pip install.

The dev requirements include installing the prod and compile
dependencies anyway so there is no need for this line in the install
guide.
Add SITE_URL in jenkins settings.
Make sure that default channel will follow nightly
Remove CMR logic from code and tests
Assert that nightly and deafult return same.
Add a readthedocs build badge to the README file.
Change docs badge style to match travis bagde.
[fix bug 1094520] Add sampling to sendMetrics
Make SAMPLE_RATE global.
Merge pull request #80 from glogiotatidis/sample-rate

Make SAMPLE_RATE global.
Delete media/files and move .htaccess to media.

media/files is an symlink to an NFS share. Having the directoy within
the repo will overwrite the symlink.
Merge pull request #81 from glogiotatidis/sample-rate

Delete media/files and move .htaccess to media.
Merge branch 'master' of git://github.com/mozilla/snippets-service into add-json-index
Fix after comments on PR and adding tests