adds back Sublime default css_completions
removes 'widows' property from completions
Adds moar CSS prop/values to completion list
Merge branch 'master' into develop
Adds ability for CSS class completions in the meta.selector.css scope, Fixes #3
A few updates and fixes and adjustments to cache storage

- fixes: allow multiple completions within one class attribute

- adds: id completions within the HTML id attribute
- adds: css class completions within style sheets
- adds: css id completions within style sheets
Adds updated css_completions for prop/values when editing stylesheets