add socket support for memcached; include socket: in the yaml instead of server: and port:
don't add socket support to old config method
Add agent_checks to metadata sent
Add agent checks errors to metadata
send checks for all instances
Add source_type_name to checks, default is file name
override checks source_type_name when needed
Update system checks source_type_name + fix typo
resolve merging conflicts
Merge pull request #942 from DataDog/localhost_typo

Config| Fix typo for default_bind_host
Only collect MySQL metrics from /proc on unix machines.
make checks fail
Merge pull request #947 from DataDog/skip-mysql-proc-windows

Only collect MySQL metrics from /proc on unix machines.
add MongoDB lock time metrics

MongoDB changed in version 2.2: ratio was removed. totalTime and lockTime were
added
add page faults metric
add globalLock queue counts
add index counters for mongo 2.2+
Merge pull request #951 from ustudio/add-mongo-2.2on-globallock

Add some mongo2.2+ metrics to check
Bump version number to 4.3.0
Update change log