Update Avatica to allow Cursor & Accessor implementations to throw SQLException.
Add one more throws SQLException to AvaticaResultSet.execute().  Update Javadocs with generic throws description since implementation specific.
Merge pull request #126 from jacques-n/master

Update Avatica to allow Cursor & Accessor implementations to throw SQLException.
Fix push-down of datetime literals to JDBC data sources.

Add test case for https://github.com/julianhyde/optiq/issues/127 (disabled).