Allow tasks to be interrupted.
Allow tasks to be interrupted.

librariesio/libraries.io,abrophy/libraries.io,abrophy/libraries.io,librariesio/libraries.io,abrophy/libraries.io,samjacobclift/libraries.io,librariesio/libraries.io,samjacobclift/libraries.io,tomnatt/libraries.io,tomnatt/libraries.io,librariesio/libraries.io,samjacobclift/libraries.io,tomnatt/libraries.io