Refactor HTML sanitizer into it's own package
Refactor text snipping function
Sanitizer function can accept no base URL
Add function to strip tags from text
Strip tags from title
Merge branch 'strip-tags-title' of git://github.com/fajran/goread into fajran-strip-tags-title

Conflicts:
	goapp/utils.go
Move utf8 cleaner to sanitizer