Changed file encoding to utf-8
Added base class for all hints visualizers. Fixed encoding.
cherry-pick of latest changes from master

Conflicts:
	SublimeHints.py
	hintsfold.py
Merge branch 'hints-renderer-base-class'

Conflicts:
	SublimeHints.py
	hintsfold.py
Removed sublime.py stub
Added insertion of plugin directory into path
Added SublimeUtilMixin helper class with some common methods.
#8 Deleted Docbook dependencies
Удалил отображение хинтов в виде свернутых строк.
#8 Restored CSS deleted by mistake
Merge branch 'master' of https://github.com/Snowball239/SublimeHints into polobranch

Conflicts:
	.gitignore
	SublimeHints.py
	doc/spec/docbook/css/style.css
	hintsfold.py