Completions for HTML attribute values, HTML entities, CSS properties and PHP

Completions for:
HTML attribute values
HTML entities
CSS properties
PHP functions and global vars
this seems to miss many property names, maybe it should use something like https://github.com/MikeRatcliffe/Acebug/blob/master/chrome/content/autocompleter.js#L967 to get more complete list
http://dxr.mozilla.org/mozilla-central/source/layout/style/test/property_database.js and http://dxr.mozilla.org/mozilla-central/source/layout/style/test/test_property_database.html can be useful too