Commit a688951d37d8a4c98d31f2aa44ef0f754ee87cc8

Con Kolivas 2012-08-01T19:34:43

Revert "Remove bitforce_thread_init" This reverts commit 2dfe0d628e05763bce09c51420860ef4f2ea7919. Roll back to init'ing bitforce devices at regular intervals. They may reinit more than previously thought.