Add script for automating 'pulling' for jenkins

Can be used locally as well

mistpull -s <if_standalone> -d <mist_root_dir> -i <io_brach> -c
<core_branch>

mistpull takes care of libcloud as well, making sure you'll always
have the latest commits
Add usage_help examnple for scripts/mistpull
Add auto_test_conf script

This one takes care of all the copying and seding
neede by jenkins
Merge branch 'chaos.io' into chaos.io.tmp