[Pharo-project] I will integrate and push some fixes before noon

- not working sensor fixes - http://code.google.com/p/pharo/issues/detail?id=789 (PseudoContext initialize) -http://code.google.com/p/pharo/issues/detail?id=788 (MC pool sorting) - http://code.google.com/p/pharo/issues/detail?id=788 (compact classes - http://code.google.com/p/pharo/issues/detail?id=783 Issue 783: Better ContextPart>>errorReportOn: - http://code.google.com/p/pharo/issues/detail?id=774 network rollover - http://code.google.com/p/pharo/issues/detail?id=784 TestCollections - http://code.google.com/p/pharo/issues/detail?id=769 Fix for (StringTest new testUnescapePercentsWithTextEncoding) - http://code.google.com/p/pharo/issues/detail?id=758 Little font rendering speedup Stef