Clean up introduction
Change counter names to reflect what they count
Split `\progressed' into two macros

New macros:

* `\resetphrase'
* `\resetpart'
Change all dance logic to use smaller counters

This greatly simplifies how everything works, and gets rid of
lots of potential issues
Don't create extra page at end when none is needed
Redo reset and new commands for phrase and part
Remove dependency on hyperref
Large documentation refactor

Added example output
Minor changes to dance form position
Make sure resources are cleaned up
Add fallback for CC logos

For users who don't have the Makefile
Allow the user to change various delimiter chars