tigefa4u projects Trac

Apply fix for #4336: reworking _group_lines to cope with empty text nodes.

0.10.4dev: ported r4546 to 0.10-stable (''custom log_format, fix #2844'')

Make it possible to configure the format string used for logging.

Example:
{{{
[logging]
log_format = ($(thread)d) Trac[$(basename)s:$(module)s] $(levelname)s: $(message)s
}}}

See http://docs.python.org/lib/node422.html for a full list of keywords that can be used.
Note however that `$(...)s` should be used instead of `%(...)` in order to prevent the !ConfigParser from trying to expand those keys himself. In addition to those keys, a few Trac specific ones have been added: `path`, `basename` and `project`. They are written the same way as the others for the sake of consistency.

This fixes #2844. Thanks to maz <mzizka@...> for the initial patch. Even if there's nothing left of that patch, he gave the incentive to get that done ;)

PermissionPolicy: Merged log:trunk@...:4543.

Blame branch: an alternative to r4543 for displaying the age color in the browser in a "light" way.

Blame branch: implement jonas' suggestion to make the color scale less prominent in the browser directory view.

Also, made that feature entirely optional (but enabled by default).
To turn it off:
{{{
[browser]
color_scale = disabled
}}}

Blame: move `BlameAnnotator` declaration to module level so the class isn't reconstructed on every call to `get_annotation_data`

Blame branch: merge with trunk@..., using svnmerge (r4520,4524,4532-4533,4535-4536,4539)

Blame branch: add <meta name="ROBOTS"> header for the browser view, as appropriate.

Follow-up to r4536, fix unit tests. Also took this opportunity to clean up that file which apparently contained 3 times the same content...