Use .startswith and .endswith instead of [0] and [-1]

Because the case of an empty string then works.
Make quotify print useful error messages
Add relativize helper to rewrite URLs
Add paragraphize helper to add <p> where it's missing
Handle ; after ellipsis
Remove more img attributes
Add removeMeta helper function
Improve the "template" sanitize sequence
Alphabetize
Make sanitize.py executable stand alone (no PYTHONPATH)
Import worddiff.py from stagestosaturn.git
Handle HTML in worddiff.py
Merge epubbase

Conflicts:
	sanitize.py
	worddiff.py
rm worddiff.js (worddiff.py now handles HTML)