agent: Re-organize deferring order
agent: Re-organize deferring order

The runContainerProcess() function was calling deferred functions in
the wrong order, this commit fixes it.

Fixes #207

Signed-off-by: Sebastien Boeuf <90b401417360b1924ef3f520ddee932686110f85@intel.com>

clearcontainers/agent,clearcontainers/agent