Remove the tag hash that contains the org and space from the start app message, since loggregator does not need the space and org anymore

Signed-off-by: Johannes Tuchscherer <jtuchscherer@pivotallabs.com>
Merge pull request #80 from cloudfoundry/tag_hash_removal

Remove the tag hash with the org and space from the start app message
use allowy for stacks permissions
Allow read access of 'global' domain
log access denied
use allowy for service auth token permissions
use :chdir open3 option instead of CC's cwd

This will prevent the CC process from having a funky working
directory, as we're cding to temporary dirs, and will be safer with
concurrent requests.
Do not skip killing the other CC

Ruby allows you to delete stuff from an array while iterating, but it is
almost never what you want. In our case we started two Cloud Controllers
but accidentally skipped killing one.
Delete unused class
Use stringified keys in NATS responses
make travis parallel
Fix parallel specs which now run in threads. Cleanup previous run