Merge pull request #96 from beachmachine/master

Fix for images in Jython
Added Andreas to AUTHORS! Thanks for your contribution.
Merge pull request #97 from beachmachine/master

Added tag name to css cache-key
Merge pull request #99 from beachmachine/master

Fix for 8-Bit PNGs
Merge pull request #101 from beachmachine/master

Bugfix for images on Jython
Update usage.rst
get css backgrounds and fonts relative to the css file path
rename do_under_line to _do_under_line
Fix a sneaky bug in the css cache

When you call pisaParser the first time it's okay but on subsequent calls the pdf is pseudo-randomly corrupted.
    
1. We need node.tagName in getCSSAttrCacheKey.
    
2. CSSAttrCache in pisaParser() should be global else initialization has no effect.
Added documentation for <pdf:pagecount /> custom tag
Merge pull request #110 from abravetti/master

Fix a sneaky bug in the css cache
Merge pull request #111 from sbisinger/master

Update the documentation to include <pdf:pagecount />
Merge pull request #109 from mthornhill/master

Fix name of _do_under_line method
Merge pull request #104 from pretaweb/master

get css backgrounds and fonts relative to the css file path
Added sbisinger, abravetti and mthornhill to AUTHORS.

Thanks a lot for your contribution!
Merge pull request #103 from leafweyo/patch-1

Update usage.rst
Major usage.rst rewrite for users new to HTML to PDF conversions.
Changed to my full name in the Authors file
Fixed deprecated raise style
Changed call to raise to work in the same way as the deprecated raise style