Fixes bug 963233 - add version_build to tables
Migration for bug 963233 version_build columns
Fixes bug 963431 handle empty result from getJsonRelease()
Fixes bug 959376 - Track supersearch calls in Google Analytics.
Review r=peterbe
* Change 'return None' to 'pass'
* Add comment about why we are ok with empty JSON files
* remove debugging print statement
Merge pull request #1820 from selenamarie/bug963431-handle-empty-json-result

Fixes bug 963431 handle empty result from getJsonRelease()
Merge pull request #1819 from AdrianGaudebert/959376-supersearch-analytics

Fixes bug 959376 - Track supersearch calls in Google Analytics.
Merge pull request #1817 from selenamarie/bug963233-add-version_build-column

Fixes bug 963233 - add version_build to tables
Merge pull request #1823 from rhelmer/bug963761-support-procfile

fixed bug 963761 - provide Procfile for running Socorro
fixes bug 952246 - correctly handle multiple signatures per bug