update to gwt 2.6.1
update to gwtquery 1.4.2

note that in the transition from gwtquery 1.3.3 -> 1.4.2, 

in class com.google.gwt.query.client.Function

the following method:
  public boolean f(Event e, Object arg);

has been replaced with:
  public boolean f(Event e, Object... arg);

Which broke compilation.

An attempt has made to resolve this, which seems to work but further testing is required.