User: Fix GPG auth on Python 3. Closes GH-541. Closes GH-542.
User: Fix previous commit.
Update documentation of ircdb.checkCapability (used in the Sphinx doc).
Set list of fixers explicitely.
Start accelerating the 2to3 step (remove fix_apply, fix_buffer, fix_callable, fix_exec, fix_execfile, fix_exitfunc, fix_filter, fix_funcattrs, fix_future, fix_getcwdu, and fix_has_key).
Continue accelerating the 2to3 step (remove fix_idioms, fix_imports2, fix_input, fix_intern, fix_isinstance, fix_ne, fix_next, and fix_raw_input).
Continue accelerating the 2to3 step (remove fix_nonzero, fix_operator, and fix_paren).
Continue accelerating the 2to3 step (remove fix_print).
Continue accelerating the 2to3 step (remove fix_raise).
Continue accelerating the 2to3 step (remove fix_except).
Continue accelerating the 2to3 step (remove fix_reduce, fix_renames, fix_repr, fix_set_literal, fix_standarderror, fix_sys_exc, fix_throw, and fix_tuple_params).
Continue accelerating the 2to3 step (remove fix_ws_comma, fix_xreadlines, and fix_zip).
Continue accelerating the 2to3 step (remove fix_funcattrs, fix_itertools, and fix_itertools_imports).
Continue accelerating the 2to3 step (remove fix_map).
Switch comments of callbacks.PluginRegexp's attributes to docstrings (for Sphinx).
Fix internationalization of docstrings of wrap()ed commands.
Remove unnecessary call to i18n.reloadLocalesIfRequired.
All plugins: Update .pot files and rename Supybot-fr to Limnora in French translation files.
Time: Update l10n-fr.
Improve the check_trans script by using Supybot's .po(t) parser.

The previous method matched line by line, which broke for msgmerge alternative (poedit\!\!\!) that changes line breaks.