ISO formats are automatically appended to the list of input
formats. Kept only when it is specified in first position, as it
has a special meaning in localize_input.
Thanks Bojan Mihelac for the report.
* Reviewed them for missing backslash escaping characters.
* Converted all of them to raw strings for consistency.
* Made default 'long' output specifiers for dates and/or times more terse
and so more suited to real local usage, trying to maintain backward
compatiblity with the equally named pre 1.2 technical message IDs where
possible.
Thanks to Fabián Ramirez for his work on this.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@13045 bcc190cf-cafb-0310-a4f2-bffc1f526a37