Pass custom executable options

[kernow]

Is there a way to pass in custom executable options? I've not been able to see anywhere these can be set from reading the source code. For instance I want to be able to set the --no-network option when running in the test environment to prevent pdf generation from loading external images.

Prince supports lots of executable options, if there is currently no way to set them it would be good to have a way to be able to do this. I'm open to suggestions on the best way to implement and then I can submit a PR.

[joshawnard]

I need to pass in --disallow-copy but am unable to do so because the executable options does not accept an argument to merge in other options for Prince, which are aplenty.

princely/lib/princely/pdf.rb

Lines 53 to 62 in 559f374

	def executable_options
	options = []
	options << "--input=html"
	options << "--server" if @server_flag
	options << "--log=#{log_file}"
	options << "--media=#{media}" if media
	options << "--javascript" if @javascript_flag
	options << @style_sheets
	options
	end