Changed the variable being checked by the require() for SlyEdit_Misc.js. It...

Changed the variable being checked by the require() for SlyEdit_Misc.js.  It was previously checking for CTRL_A, which is now also defined in key_defs.js, so SlyEdit_Misc.js wasn't being loaded anymore.  With this fix, SlyEdit should now run again with the latest .js updates.