FIX: Apply unsharp only when resizing
FIX: Allow toggle size order in tag sorting with antitag
Merge branch 'master' into dev
FIX: normalize addSizeBox to allow reuse in collage tile size
FIX: normalize setColor to allow collage to use
FIX: Use wmcol instead of txtcol, this probably means watermark
text color hasn't been operational. Also setColor uses an argument
less
FIX: Make Thumbnail preview responsive. No more stops while thumbnail
is generated.

Use normal thumbnail for xcf and psd files. while it looks small it makes
posible to use filesystem generated thumbnails.
Use update idletasks instead of vwait hack
FIX: setColor error handling and settings.
minor fix on return error codes
FIX: Keep GUI alive while generating thumbnails
FIX: Broken preview. check if id is imagemagick file, this only happens
when providing an id to convert in preview.
FIX #35 : Now its possible to select the color to be used instead
of the alpha channel.
Merge branch 'master' into dev

Conflicts:
	artscript2.tcl
FIX: Preview not working with png,jpg,webm