[Core] added Pastels.load which let you easily load required components
[Core] fixed insertToDOM and removeFromDOM
[Selectable] extract Selectable from PopOver
updated Swordfish
[Typeahead] rebuilt the whole class
push classes name into Pastels object
[PopOver] many changes and improvements
[Scroller] added horizontal and vertical options
[Core] partial rebuilding
[css] changes in .selectable and scroller .content