hacked to work with jdk7 with all tests ok
Merge branch 'jdk7' of https://github.com/optimix/UISpec4J into optimix-jdk7

Conflicts:
	uispec4j/src/test/java/org/uispec4j/SpinnerTestCase.java
#1: Fixed test for OpenJDK 6.
Refactored code style on @optimix contribution to match UISpec4J code style.
UISpecWindowPeer is now JDK version dependent.
Fixed ClassCastException.