Statsd Batching| Allow to send several datapoints in one udp packet
Statsd Batching| Fix docstring and use some float in the tests
Merge branch 'master' into statsd_batching
Check the MongoDB connection and send the service check
Expvar| Add support for wildcard to specify content to report
Expvar| Update the yanl example
Expvar | Document more deep_get function
Add MySQL service check
Add service check for SQLServer
Revert "Check the MongoDB connection and send the service check"

This reverts commit 90eaebfc713b050cdde0545093e5e7f3abdbb30b.
Merge branch 'master' into db-service-checks

Conflicts:
	checks.d/mysql.py
Add service check for MongoDB
Clean mongo check code
Add test for Mongo sc
Add test for Mysql sc
Add test for SQLServer sc
Fix Travis build for test_mongo.py
Fix typo that made the Travis build fail
Merge branch 'master' into db-service-checks
Merge master and un-delete the go expvar checks