Applet Problem Hotfix

Removed double inclusion of applet macros script files.  I removed them from the AppletObjects.pl file with the assumption that someone might use Applet.pm with a different front end.  I haven't heard anything about which is the right place for the script lines. 

I've submitted this as a hotfix to master because it actively prevents problems that are currently in the library from working.  If it should be slated for a future release then I will resubmit.  This should be merged with the corresponding webwork pull request.