Fixed example for content_processor.erb.trim_mode
Listeners can now be inserted before/after other listeners to ensure a specific ordering
Added correct listener IDs for all Blackboard#add_listener calls
New config option tag.menu.css_class for setting the class attribute of the top level tag used in the menu
Made CSS classes used by tag.menu configurable
Updated content processor sass/scss

* Files starting with an underscore will not be output anymore (they
  are partials)
* Imported files can now be specified relative to the current file
Clarified API documentation to state how to change default node class
Replaced unused variable by underscore to fix Ruby warning
Fixed problem with nil value when using the -o CLI option
Word "ruby" for detecting configuration file in ruby syntax is now used case insensitive
Meta tags from the node meta information are now added by cp html_head even if nothing is set programmatically
Added item tracker for template chains
Template chains are now correctly tracked
Path patterns now match fragment paths only if the pattern contains a hash character
Updated API documentation