Removed query_misc.go
Added some tests for the write functions. They do not pass yet as they rely on the Nth function
Added the transformation ReQL functions
Added aggregation ReQL functions
Added the rest of the selection ReQL functions
Tidied up result code
Improved query results and started work on the code for scanning a row into a variable
Fixed some bugs with the data mapper
Updated mapper to ensure that maps are of type map[string]interface{}. This is because rethink always returns keys that are strings