Allow internal topic references to be just system ids

Issue description

Currently an internal topic reference starts with "id:". This causes TopicReference to check the existence of that id with a select. This is unnecessary, if the id has just be returned from some query, so allow internal topic references to be just id.

Reporting date

2011-01-14

Reported by

Robert Cerny

Resolving date

2011-01-20

Resolved by

Robert Cerny

Resolved in version

Topincs 5.3.0

Work sessions

Start	2011-01-20T13:19:06
End	2011-01-20T15:21:50
Participant	Robert Cerny