ensure the splitter handle supports hover
push the styling logic into util functions
add support for dock area pseudo elements
move the win-7 fix to top level and formatting linebreaks
nicer formatting of css
update
update docs
update docs
add support for custom dock item styles
add the handlers to support dock item style sheets
initial commit of stdlib dock area styles
remove duplicate background def
return None if no value defined for style
nicer formatting
support the 'floating' pseudoclass on the dock area
port the dock area styles to enaml stylesheets
add a keyword-safe module alias
only string join if needed
only string join if needed
remove the toolkit specific style sheets

this removes the predefined qt style sheets in favor of the predefined
enaml style sheets. User defined toolkit stylesheets will still be
supported (but will warn) until Enaml 1.0