improve state update for droplet.exited

Change-Id: I27b930c553301300a06a4944bfa11f42bee70245
expand loggin for extra instances

Change-Id: I0564533d1a2bf8c35a23ad16e4c2240b925c9ae9
less logging

log "given up on flapping instance" only once, when the crash signal
arrives. Do not log same when the missing instance is detected (as
opposed to crash signal received).

Change-Id: I7fdd11b3b82c8177900eee7e34b9a6bf2f44d480
do not cache missing_indices calculation

Change-Id: I474894d0c2d5998f68b3f883a6c57d34def35caf
Refactor specs

 Use fully qualified names

Change-Id: I740742cd1a87ef894c659e84c6b469db487a2f71
Bump eventmachine to 1.0.0

This change is incompatible with ruby 1.9.2
Migration to ruby 1.9.3 is required

Change-Id: Ic806cdbe8ea5c280e59889aca368fba8cf086033
bulk API retry logic
Update README.md
fix: bulk_api loop duration calculation
fix: bulk: refresh credentials
Merge pull request #2 from cloudfoundry/master

Merging from cloudfoundry trunk