Imports of package mech

PathSynopsis
errorsPackage errors implements functions to manipulate errors.
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/golang/glogPackage glog implements logging analogous to the Google-internal C++ INFO/ERROR/V setup.
github.com/mesos/mesos-go/api/v0/auth/callback
syncPackage sync provides basic synchronization primitives such as mutual exclusion locks.