PCT-671: Alpha prototype
PCT-671: cleanup
PCT-671: s/monitor/instance/i
PCT-671: simplified version
PCT-671: move structs to proto
PCT-671: add test on real mysql
PCT-671: fixes and tweaks to made it working with web-app
PCT-671: Test to cover the problem that explain doesn't work when db is specified
PCT-671: Fix for queries that are bound to specific db
PCT-671: new mysql log parser records also db name with query for explain
Merge branch 'release' into PCT-671_explain_support

Conflicts:
	Godeps.json
PCT-671: make access to manager thread safe (use mutex)
PCT-671: s/q/query/
PCT-671: separate explain service from manager
PCT-671: further separate query manager from it's services
PCT-671: use []*proto.ExplainRow instead of []proto.ExplainRow to avoid copying wiht append
Merge pull request #63 from percona/PCT-671_explain_support

PCT-671: Support for explain