Add: stats data for all the daemon.
Allow wildcard service_description in serviceescalation
Add: now the scheduler send real stats to the metrology server. It use AES with a secret as key, and will use the api_key to in the future.
Update shinken
Fix: better metrics for scheduler stats and add arbtier stats too
Merge pull request #1261 from Sismic/master

Update shinken service
Fix: tests with the stats reaper thread, and add new stats
Fix: merge
Fix: call the inner metric api once a minute
Add: method to get service tags
Fix #1263: log formatting for external commands
Merge pull request #1262 from mohierf/master

Add: method to get service tags
Fix: log formatting for external commands #1263
Enh - Doc : Add table for PR
Enh : Doc - Unmock pycurl to make doc compile
Enh : Add CONTRIBUTING file for PR
Enh : Logger - Do not format when logging
Merge pull request #1268 from naparuba/logger_calls

Thanks a lot to @htgoebel for making it very easy to fix :)
Enh : Doc - Fix #1218
Enh: Edit retention parameter. Add support for reset modify attribute
enh: module name uniformisation