Temporary removing QL from travis tests. QL uses a _solaris.go file that throws compile time errors on < go1.3.

Save time zones in postgres driver

The current format doesn't save the time stamp, which leads to undefined behavior when updating a TIMESTAMP WITH TIME ZONE column.

SQLite: Fixing sqlutil functions. Scope revision (Table, Source, Tx, Result should not be exported), mild golint review (unused/uncommented globals).