Customize bin/compile to use phantomjs official source
Revert to stomita version of phantomjs package

There was an issue with gz...
Merge branch 'master' of git://github.com/stomita/heroku-buildpack-phantomjs
change ver to 1.7.0
Update README.md
updated README.md
change ver to 1.8.1
Merge branch 'master' of https://github.com/rymai/heroku-buildpack-phantomjs into rymai-master

Conflicts:
	README.md
change ver to 1.9.0