Added missing UISpecWindowPeerDecorator in the jdk6 specific sources.
Identical to jdk7 implementation expect for window type validation in show().
Fixed WindowInterceptor test to deal with localization in Swing UI labels.
If Locale is no en_US test will fail due to different label. Bug in JDK7 hides this bug.
Added missing method to support jdk 1.7.0_60.
Fixed change in access level of several method from private to protected to align with parent declaration.
In other to allow usage of Toolkit that do not override Toolkit.getScreenInsets (in particular cacio-tta), the ToolkitDelegate should return a default inset to avoid stack overflow.
Merge branch 'jdk7' of https://github.com/nebulorum/UISpec4J into jdk7