DevelopmentServletLoader: Reload servlet container.

- If WebContent/WEB-INF/classes exists, we configure jetty to
  reload whenver a class file is modified.
- Remove deprecated SSL API calls.

Change-Id: I737fb92e78ce5573a4473639f25fcdad606f3c55
Merge ssh://dev.vaadin.com:29418/vaadin
Created Scafolding for UI Api testing.

Change-Id: I76e3b896550dfaaddeca6a03a79148441f127bdb
Decoupled main Component methods.

Having these methods decoupled, we can make Server/Client
UI-Widgets share the same API, making easier to produce
componets usable from pure GWT code.

Change-Id: Id8abf9e781362816baa7ce8741796a30183ba07c