More mysql metrics
Fix PATH
Merge pull request #972 from DataDog/mysql-checks-add

More mysql metrics
use the ntp server's timestamp in case the host clock is messed up
Merge pull request #974 from DataDog/ntp-check-2

use the ntp server's timestamp in case the host clock is messed up
Merge branch 'master' into omnibus_bundling
Handle negative replication delay as being 0 seconds behind
Let the possibility to disable instance metadata collection

Fix #975
Fix tests
Send info about deprecated checks to dog web
Fix test
Merge branch 'remove_old_config_style' into omnibus_bundling
Lower the timeout

We don't want that check to hang for 5 secs
Fix argument passing
Merge branch 'master' into omnibus_bundling
Fix test
Few improvements to the NTP Change

Send status UNKNOWN if we can’t connect to the server.
Do not run the check at every collection
remove not supported service check status
Do not enable default check by default
Merge pull request #977 from Tenzer/negative-replication-delay

Postgres: Handle negative replication delay