tigefa4u projects Trac

Follow-up to r4714, csv writer is not unicode aware, so we convert the data to UTF-8 encoded strings.

Allow TracQuery to specify result columns, using the `col` parameter. Related to #2821.

Follow-up to r4782, remove some left-over debug statements.

Add the possibility to save a custom query as a report (#1735)

Reports can now contain a query string, either in the '?...' URL form or in the TracQuery#QueryLanguage form.
Viewing such a report simply redirects to the corresponding custom query.

When a saved custom query is displayed, the title and the description of the report will also be shown, as well as an ''Edit Query'' button, for editing the query as it was saved.

There will also be a ''Save Query'' button, which will save the ''current'' parameters of the query, either in the corresponding report if there's already one or in a new report, provided the appropriate permissions are satisfied (REPORT_MODIFY and REPORT_CREATE, respectively).

fix Unified diff display for side-by-side diffs (fixes #4754)

add some startup messages to tracd to show when it's ready

Ported r4778 to 0.10-stable (fixes #4763)

add support for SilverCity YAML, Java, and Verilog lexers (fixes #4763)

Follow-up to r4775, where I got a few things wrong:
- when retrieving list of tickets from a report, also catch !KeyError in case there are no "id" in the result columns
- ''really'' only clear the query session variables after a success of the query_tickets assignement.
- revert to global sequence when there's a result set but the current ticket is not inside

add Python 2.3 compat implementation of `itertools.tee` (fixes #4729)