Merge pull request #57 from kl/master

Remove grep in favor of regular expressions
Merge pull request #58 from kl/master

Soundcloud https
Bump version
Fix tests by doing a get request by default
For the sake of test-duration, do a get for soundcloud and leave the head call where possible
Use Nokogiri 1.5.x to remain ruby 1.8.7 compatible
Version bump to 0.8
Fix invalid char