Select all records, delete users, blacklist users

Commit on 23/04/2014.
Search user by first name

23/04/2014 at 8PM
Search user using types and fields

search user using different search types and fields like first name,
last name etc.
changed table name

changed table name
renamed lead model

Renamed lead model to lead_model
renamed lead model
renamed lead class
Merge remote-tracking branch 'origin/master' into um-1.1.2DuplicateRecord
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