Loggregator acceptance test

Signed-off-by: Casey McTaggart <cmctaggart@pivotallabs.com>
Test helpers for pushing and deleting apps

Signed-off-by: Casey McTaggart <cmctaggart@pivotallabs.com>
Test cleanup

Signed-off-by: Casey McTaggart <cmctaggart@pivotallabs.com>
Update message expectations to latest ouput from DEA

Signed-off-by: John Tuley <jtuley@pivotallabs.com>
Ensure that loggregator specs are distinct

Signed-off-by: Jared Carroll <jcarroll@pivotallabs.com>