Add basic support for linking to local files.
Cleaned whitespace
Any valid destination can now be an outline destination

Before only simple references to pages could be done. Now, instead
of using an Integer for the :destination key, it is possible to
use an Array with a custom destination (and such an array can
easily be generated with the various #dest_* methods).
Merge pull request #552 from gettalong/outline-destination-enhancement

Outline destination enhancement (backwards-compatible code, tests and documentation)
Whitespace cleanup
Implemented the #stroke_axis helper method based on the one from the manual

Additional options allow moving the axis to another point, setting the
color, and more.
Whitespace cleanup
Updated the manual to use the (now) built-in stroke_axis method
Fixed many Ruby warnings when running prawn under 'ruby -w'

* places where variables were shadowed
* places where instance variables are not initialized
* places with mismatched indentation
* places where deprecated methods are used
* places with unused variables
Merge pull request #342 from dougjohnston/master

Add basic support for linking to local files
add local link support to parser, builds on #342
Merge pull request #559 from crazymykl/local_links_in_parser

add local link support to parser, builds on #342
Merge pull request #554 from gettalong/ruby-warning-fixes

Fixed many Ruby warnings when running prawn under 'ruby -w'
Merge pull request #553 from gettalong/stroke-axis-implementation

Implementation of the stroke_axis helper method