Added few tests utility classes that can be used for

Added few tests utility classes that can be used for
 * Logging (displays caller class, method, linenumber which is clickable on Eclipse console)
 * LogPrintWriter which can be used to gather all data send from server to client (if you wish not to use firebug)
 * RandomComponents which provides means to create random layouts and random components / demo custom components
 * Test listeners for checking robustness / memory leaks

svn changeset:3721/svn branch:trunk