First pass at using omnibus
Remove files that are not used anymore
Merge with master
Properly check if jmxfetch is already running
Use pg8000 instead of psycopg2

See #877
Merge with branch to use pure python dependencies for db checks
Bump version to 5.0.0
Use pymysql instead of MySQLdv

See #877
Use pymysql instead of MySQLdv

See #877
Create a test for postgresql check
Merge branch 'master' into pure-python-db-checks
Merge with pure-python-db-checks
Fix mysql and postgresql tests
Merge branch 'pure-python-db-checks' into omnibus_bundling
Fix postgresql test
Merge branch 'pure-python-db-checks' into omnibus_bundling
fix postgresql check
Merge branch 'pure-python-db-checks' into omnibus_bundling
Fix postgresql check test
Merge branch 'pure-python-db-checks' into omnibus_bundling