Support for PhantomJS 2.0.0

[docBliny]

Currently the service does not function on PhantomJS 2.0.0. One reason is that scripts/rasterizer.js uses phantom.args which has been deprecated and removed in PhantomJS 2.0.0. There may be other issues as well, as a quick switch to the "system.args" still caused 500 errors.

[slarson]

There is a fix

[fabiodr]

@slarson Fix worked for me, thanks :)

@fzaninotto this fix can be very helpful, maybe a merge?

[fzaninotto]

@slarson can you make a PR?