init phantompdf repo
new Rakefile
add phantomjs dependence
new errors for PhantomPDF
new PhantomPDF::Source for source maintaining
new PhantomPDF::Config for configuration
new PhantomPDF::Assets for assets management
new :be_pdf_file and :be_pdf_string matchers
fix Source#url? bug
rename spec/fixtures/file.html to spec/fixtures/phantompdf.html
add pdf-reader and byebug for development dependence
update PhantomPDF errors
make Config#phantomjs readonly
new PhantomPDF::Generator
update rasterize.js
new PhantomPDF::Middleware for Rack