Merge pull request #158 from smuzaffar/master

config flag ALWAYS_TAG_CMSSW added to always tag the cmssw
Helper script for merging a pull request.
Add mmusich as convener for alca

resolves https://github.com/cms-sw/cmssw/issues/5846
PR Tests: report detailed status while running the tests
Merge pull request #159 from nclopezo/report-detailed-status

PR Tests: report detailed status while running the tests
Added a simple script to generate a json file with the categories
Merge pull request #160 from nclopezo/parse-categories-to-json

Added a simple script to generate a json file with the categories
Add CMSSW_7_0_9_patch2 for slc6_amd64_gcc481 as .
Add CMSSW_7_2_0 for slc6_amd64_gcc481 as .
Add script to cleanup CMSSW and CMSDIST IB tags.
Make cleanup-tags executable.
git ls-remotes takes *, not .* as wildcard.
Added mapping of people to categories to simpily visualization
Keep only last 40 valid CMSDIST tags for every queue.
No run if empty.
Add CMSSW_7_2_0 for slc6_amd64_gcc491 as .
PR Comparisons: add machine architecture to details file
Use release queue for triggering the tests
Schedule PRs: If RELEASE_FORMAT is empty, use RELEASE_QUEUE
PR Tests: added a script that queues the new prs to be tested.