Fixed bad Pipeline execution code.

Unfortunately the solution is hack for now, until we can get Query's to be updated after submission, and parameterbindings sent. Also added a way to throw ServiceExecutionErrors, although it is unproven.
Fixed QueryManager#updateQuery, and added support for setting parameters.

Update can now be used to update the database from a changed query (for example getting it back from the backend completely parsed)
Merge branch 'master' of github.com:SEDTT/visko-online