v0.2 (RethinkDB v.1.12)

• Changed Connect to use ConnectOpts instead of map[string]interface{}
• Migrated to new Group/Ungroup functions, these replace GroupedMapReduce and GroupBy
• Added new aggregators
• Removed base parameter for Reduce
• Added Object function
• Added Upcase, Downcase and Split string functions
• Added GROUPED_DATA pseudotype
• Fixed query printing