Fixed issue with program hanging without output

-Added Setup object in PAXChecker.java again (Uncommitted from 1.7.5, woops)
--Patch Notes will now load correctly
-Removed unnecessary output from Paxsite.getCurrentButtonLink()
-Added connection timeout to HttpUrlConnections in Paxsite.java and Showclix.java
-Made UpdateHandler update Patch Notes in Setup window
-Changed version to 1.7.5.1