Add a new attribute `ignore-blanks' to <test>.
When this is set to "true", any blanks in the string will be ignored
on comparison. This takes effects for compare="eq" or "not_eq" only.
Also changed the behavior of the comparison on <alias> too.
Autohinting for Indic fonts has been disabled since freetype could not handle
it properly. But since freetype-2.3.5, the hinting problems for indic fonts
have been fixed. Thus this is a request to enable the autohinting in
fontconfig again for all the indic fonts.