set of updates for Polish recipes
Working CSS syntax highlighting
Refactor the highlighter classes to make them completely trivial
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Highlight CSS inside <style> tags
Add device ids for Kindle Fire HDX to linux MTP driver

Fixes #1246775 [Please add Kindle Fire HDX to MTP list](https://bugs.launchpad.net/calibre/+bug/1246775)
Merge branch 'master' of git://github.com/kovidgoyal/calibre
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version 1.9
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Fix #1247004 [Version 1.9 Comments editor has no toolbar](https://bugs.launchpad.net/calibre/+bug/1247004)
updated polish recipes
new recipes
Various new and updated Polish news sources
EPUB Output: Add a warning about images in the CMYK colorspace
Start integrating the editor component into the main gui
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Make line wrapping configurable
Fix field_metadata.is_series_index that apparently never worked.
Bug #1247348. This change might change behavior of something. Before, any int or float that was None or zero returned an empty string. Now only None values do that. The previous behavior did not work properly with zero values in templates, including series indices.