tigefa4u projects Trac

WikiFormatting: headings range from <h1> to <h6>, as determined by the number of leading '='.

Also the trailing '=' are now optional, for better WikiCreole conformance.

Fixes #5713.

WikiFormatting: make it possible to start list items at the beginning of line directly, without preceding space characters.

This makes the Trac wiki syntax for lists closer to other markup syntaxes, namely reStructuredText, WikiCreole and rdoc's simple markup.

fr_FR: updated translations (100%)

i18n: update_catalog for a few languages (fr, nl, zh_CN) (please ignore)

i18n: new message extraction (please ignore)

nl_NL: fixed several msgfmt errors, to make Transifex happy.

{{{
$ msgfmt --statistics trac/locale/nl_NL/LC_MESSAGES/messages.po
trac/locale/nl_NL/LC_MESSAGES/messages.po:1812: keyword "Bestand" unknown
trac/locale/nl_NL/LC_MESSAGES/messages.po:1812:17: syntax error
}}}

and:
{{{
$ msgfmt --statistics trac/locale/nl_NL/LC_MESSAGES/messages.po
trac/locale/nl_NL/LC_MESSAGES/messages.po:336: `msgid' and `msgstr' entries do not both end with '\n'
trac/locale/nl_NL/LC_MESSAGES/messages.po:1711: `msgid' and `msgstr' entries do not both begin with '\n'
}}}

nl_NL: added translations contributed by Laurens Holst.

0.12dev: merged r9007, fix for ticket search (#8935).

0.11.7dev: fix performance issue in ticket search query, apparent when several custom fields were used.

Issue reported, investigated and patch by David Huang, many thanks!

Closes #8935.

0.12dev: Make CSS selector for the side-by-side wiki editing title more precise, so as not to modify the preview content.