making the widgets sub-project compile again (but remove some unsupported plugins)

this also does not compile a proper jar file with the pre-compiled gwt output
include compiled widgetset into jar file
reworking MainApp (now AnnisBaseUI) and SearchWindow (now SearchUI)
loginwindow should be a global variable
annis.gui package (but not it's sub-packages) does not compile
more step by step compile fixing (and some automated Notification code replacement)
maling the tiger query builder compile
saving the porting work for today
saving state that compiles (but of course does not work properly...)
moved code from SearchUI.attach to init (should be a general pattern) and fixing a getContent() related error (always create VerticalLayout by ourself, do not get the content and assume it is a VerticalLayout)
proper usage of the legacy chameleon style
always call the base UIs init method and small fixes for the "about" and "help us" windows
again: do not get content but set it
ask where to save to pdf
fixing the GWT compilation
show result information bar and use dummy URL for iframe visualizer
do not use attach() any longer
trying to remove the wrong layouting when searching
moved AnnotationGridConnector in order to make the annotation grid actually work...
the resize listener seems to be unnecessary in Vaadin 7