Allow to use repeatable options example like --cookie via meta tags.
An attempt at allow hashes for repeatable options
Document where the repeatable options came from

[ci skip]
Use arrays for hash keys
Simplify handling of repeatable options

Remove commas from Array declaration
Handle multiple values in meta tags
Merge pull request #221 from pdfkit/repeatable-options

Repeatable options
:panda_face: Added verbosity.
:panda_face: Replaced the failed test for case to get content of the unreachable page. Replaced  duoble quotes with single quotes in middleware.
:panda_face: Show the command line on verbose.
:panda_face: Updated tests.
:panda_face: Updated tests.
:panda_face: Extracted methods from the middleware method render_as_pdf?.
:panda_face: Show the content if verbose mode.
:panda_face: MErge stdout with stderr.
:panda_face: cls.
:panda_face: Added ability to use strings with content true like boolean.
:panda_face: Allow to use repeatable options example like --cookie via meta tags.
:panda_face: Moved quiet to options. Fixed typos.
:panda_face: Removed map.