sqlgen: Adding GROUP BY clause support.
sqlgen: Removing unrequired field.
Adding interface for grouping results by column (Group()).
PostgreSQL: Adding support for db.Result.Group().
MySQL: Adding support for db.Result.Group().
Fixing comment formatting for db.Result.Group().
SQLite: Adding support for db.Result.Group().
QL: Adding support for db.Result.Group().
MongoDB: Adding placeholders for group by support. Currently not implemented.
Adding precedence over column name to field name mapping. Closing #27.
Temporary removing QL from travis tests. QL uses a _solaris.go file that throws compile time errors on < go1.3.
Adding go1.3.1.
Keeping up to date with branch master.