Fix elec tile mov. Cheat to level bots: hold 'U' and 'P'. Level2. Overlay/Menu stuff

Added fix for half-exiting elec tile diagonally when set on.
Added 'cheat' to quickly set all bots level to 10 by holding down 'U' and 'P' together.
Added overlay window to 'highlight' active bot
Added description to bot selection screen (should be formatted :0)
Added Auto-complete level via "G" + "O" for testing.
Added option to restart current level.
Added start of Bot1 extension arms
Set new level2.xml
Fixed a level transition bug
Fixed adding to elec return path while retracing that path.
Fixed Bot1.grabbed obstacle from not releasing when moved by another obstacle
Fixed continue from save
Editor: 
Added visual to determine activeSelection
Fixed error setting links after loading a level without links