Merge pull request #97 from l1ll1/master

new log file, launch NeCTAR VMs
Merge pull request #98 from l1ll1/master

clean up nectar vms a little bit
Merge pull request #99 from l1ll1/master

different versions of boto module have different problems
Merge pull request #100 from l1ll1/master

include the endpoints.json resource for boto
Merge pull request #101 from l1ll1/master

new cvlsshutils
use os.path.join so that file paths work on Windows