Added com.itmill.toolkit.terminal.web.ApplicationServlet which eases running Millston...

Added com.itmill.toolkit.terminal.web.ApplicationServlet which eases running Millstone3, Toolkit 4 projects without requiring changes to web.xml
BUT prints
[WARNING] Compatiblity class in use. Please use com.itmill.toolkit.terminal.gwt.server.ApplicationServlet instead. You probably need to update your web.xml.

Moved Log class to better place, opened it as public so whole Toolkit may use it (I consider it's not a major thing if Toolkit users see it aswell)

svn changeset:2649/svn branch:trunk