Nastaliq 1.0 added

Just a stake in the ground for folks that need a release tag. The most notable recent change is the initial release of Nastaliq, which previously had been in alpha.

Since the fonts are all different versions, a regular version number doesn't make much sense. We'll probably add date-based tags from time to time when there are enough significant changes to warrant it, but probably will not do so for every small update.