lyrics: google backend should turn up more results
lyrics: google backend should turn up more results

bs4 scraping routine has been made more generic,
relying less on specific markup tags.
Better algorithm to detect which url titles match
song titles: domain names are now removed from url
titles.
Use regex to decimate \n in fetched lyrics.

google-code-export/beets,google-code-export/beets,google-code-export/beets