Basically, in XMP you can specify partial date (for example 2011-04 for april 2011 with no day).
We were extracting that, and fulling out the day to 01 if it wasn't present (My original resoning when writing
the code was that the nice localized date functions need a full date, but that's a pretty poor rationale for displaying
wrong date). This changes it to just display such year-month things as YYYY:MM.
Most of these were actually here going way way back to the dark ages
(although they were hidden as $tags[$tag] = $val; with $val being the same as $tags[$tag])
* Some strings were using double quotes needed the dollar sign escaped.
(the strings had to do with detecting obscure text encodings for IPTC)
* FormatMetadata::collapseContactInfo should be static (for some reason I never got any E_STRICT on this. I think the api suppresses E_STRICT somehow...)
* Exif::get/makeFormattedMetadata method (which appears to no longer be used, and
never was used, but kept in for compatability just in case) called
another function without required argument. Also got changed from public
to private somehow (which is generally a bad idea, especially when its only
reason for being there is to preserve back-compat). Marked these functions
as deprecated while I'm at it since they really should not be used.
Hope I did this in an ok fashion. svn merge --re-integrate was giving me issues
so I just essentially over-wrote my working copy with the version at img_metadata.
