tigefa4u projects Trac

Create cgi-dir if necessary. Check python version, bark at user if < 2.1.

Added support for more types of wiki links. For example:
{{{
bug:2
ticket:2
report:1
repos:/foo
source:/foo
source:/foo#3
source:/apa#latest
browser:/foo
wiki:WikiStart
}}}

Overhauled templates and layout for usability and accessibility.
Changed ticket templates to be more user friendly and put focus on important
information. Use javascript to autofocus on load. Fixes #147.

Throw an informative exception if the user tries
to view a page diff with python < 2.2.

Support for dynamic reports. Use $FOO in a query to define a variable, give it
a value by specifying FOO=bar in the URL. $USER is always set to authenticated
user (or anonymous). Fixes #139 and most of #140.

Example report query:
SELECT id AS ticket, summary FROM ticket WHERE owner='$USER' ORDER by id;

Replaced util.dict_get_with_default with built-in dict.get function.

Allow nesting of blockquotes. This closes #145.

Stricter parsing of processor macros. This closes #151.

Install trac.cgi into $prefix/share/trac/cgi-bin

This closes #142.

If duplicate URI args, just use the first. Fixes #134.