[Trac] TracTags 0.3.1 out

[Muness Alrubaie]

Another release.  Get it, as usual at
http://muness.textdriven.com/trac/wiki/tags/Setup .

Changes:
 * Added a tag link cache, for caching details on the tag page. Might
need to add some kind of expiration at a later date.
 * Fix for, apparently, specific versions of SQLite where the table
creation was not working due to a rollback.
 * Added a basic tag matching expression language. eg.
(ticket+workflow)-(closed|wiki)
 * The /tags/ space can use the expression language by setting
expression_space=true under [tags] in trac.ini. The URL suffix is
treated as the expression.
 * Added an expression=<expr> argument to ListTagged?. Read the macro
documentation for details.
 * Fix for bug in non-expression_space mode.
 * Another bugfix for the 2.3 sorted implementation. (no longer param
compatible to 2.4)
 * Quote all tag expression arguments to prevent the Python compiler
from getting confused by tags like E-Mail addresses or floating point
numbers.

Note that as of 0.3 you can query tickets using the ListTagged macro
or the /tags uri handler. Specify the fields to be tag providers, in
trac.ini, e.g.:

[tags.ticket]
#component|severity|keywords|priority|owner|reporter|cc|version|milestone|status|resolution|summary|description
fields=component,severity,keywords

You should be able to use this capability to replace - simple - reports.