Update dependencies to use PhantomJS version 1.9.7-8

This update aims to fix this PhantomJS issue: https://github.com/Medium/phantomjs/issues/161

Mainly, this new version of PhantomJS change to cdnURL from

```
http://cdn.bitbucket.org/ariya/phantomjs/downloads
```

to
 
```
https://bitbucket.org/ariya/phantomjs/downloads
```
to accordinate with the new Bitbucket URL format.

I also update to package version to 0.6.1 (don't know if it might help, hoping so! :yum: )