Merge pull request #16 from siddharthg/crmSQL

{crmSQL} now returns an JSON with error details.
Merge pull request #17 from siddharthg/contacts

I'll try on my data next week
Merge pull request #18 from siddharthg/contactsoverview

It's better to keep one PR per issue, but when in dev and one liner, ok enough ;)
Merge remote-tracking branch 'upstream/master'