Fix https://github.com/joeferner/node-java/issues/143 (threading bug on Windows).
Fix https://github.com/joeferner/node-java/pull/150 breaking gyp on Windows.
Make dynamic java proxy equals/hashCode methods equivalent to java.lang.Object if they are not defined on the js proxy.
Merge pull request #152 from facboy/master

Fix https://github.com/joeferner/node-java/issues/143