Changed license to Apache-2.0.

added raise exception for PG.

Merge pull request #5 from chapsuk/escape_functions

Added array escape functions, with tests

License upgrade from WTFPLv2 to Apache 2.0.

Merge pull request #3 from dec5e/remove_query_unknown_parameter

Remove non-existent third parameter in `Connection:query()` calls

was supported json data in fields for pg query templates.

float helper for postgres templates.

redis watch will return a result

watch command support for phpredis

added predis support