Bug fix for threads and scp element

[JMillen]

Fixed bug with threads returning floating point numbers. Fixed the "scp()" element being misused.

[CHughessy]

I get this runtime error for not being able to run ns.gainRootAccess :

RUNTIME ERROR
hack-manager.js@home (PID - 57)

ns.gainRootAccess is not a function
stack:
TypeError: ns.gainRootAccess is not a function
at little_prep (home/hack-manager.js:45:16)
at async Module.main (home/hack-manager.js:333:9)
at async L (file:///C:/Program%20Files%20(x86)/Steam/steamapps/common/Bitburner/resources/app/dist/main.bundle.js:2:1056236)

but I'm sure that there's no mistakes in either hack-manager.js or utils.js.

[CHughessy]

removing the "ns." from "ns.gainRootAccess" has defined it as an import function now i get the following error:

RUNTIME ERROR
hack-manager.js@home (PID - 8)

ns.fileExists is not a function
stack:
TypeError: ns.fileExists is not a function
at gainRootAccess (home/utils.js:19:9)
at little_prep (home/hack-manager.js:45:13)
at async Module.main (home/hack-manager.js:333:9)
at async L (file:///C:/Program%20Files%20(x86)/Steam/steamapps/common/Bitburner/resources/app/dist/main.bundle.js:2:1056236)

but im not sure how i would modify utils.js to fix this