JAR Download and Execute and new Mac Reverse Shell

Here are my changes if you wish to incorporate them:

IMPROVEMENTS: 
 - Improved the Mac OSX Reverse shell "stealthiness" - hides everything in a .maintScripts folder
 - You can now name your launch ctl label

ADDITIONS:
 - New Mac OSX Reverse Shell using a Python one liner - fast, more compatible (I couldn't get the ncat one to work) and also auto-reconnecting (while loop with a 5 second delay before reconnect attempts).
 - Windows JAR download and execute

TODO:
 - Add a way to cancel out of the while loop for reconnecting, perhaps a script in the folder to "clean up" after the script and remove all tracks that can be called from within the reverse shell