* Colorless for color filter
Add 'colorless' as an option for color filter in deck editor / card list.
* Remove empty quote check
Empty quote does not work here. Add 'none' as optional string instead.
* Add C to colorless filters
fix for #749
+ You can now search for sets using lower case: "frf", "dtk", "rtr" and
so on.
+ You now need exact matches on set short and full names. "rtr" and
"return to ravnica" will work. "return" will not work.
in the case of AND'ed filter terms, returning true
from acceptCardAttr will be equivalent to ignoring the
disabled term, but in the case of OR'ed terms,
returning true will incorrectly cause all cards
to be accepted.
the fix is to test for whether the term is enabled
before calling acceptCardAttr and continue if
disabled.
the original layout is actually more space efficient if using CardFrame
instead of CardInfoWidget and reducing the size of the deck editor
toolbar.
this commit also removes the old search feature by removing the search
button and the clear search button. the clear search menu item is left
in place, however it now clears the filtertree.
finally, the stretch factor for the right frame in the main layout was
reduced to zero so that the card database gets priority for extra space.
this makes more sense because the deck editor does not actually need
very much horizontal space.
