Remove unused config.num_instances
Update Java Buildpack

This change updates the Java buildpack to version 1.2.  Version 1.2
includes changes to Play support, logging, and most importantly, off-
line dependency resolution support.
Merge pull request #58 from nebhale/update-java-buildpack

Update Java Buildpack
Merge pull request #57 from drnic/remove_num_instances

Remove unused config.num_instances
Add component name to directory server registry message
dir server: fix global logger type
improve logging for downloading app package
remove dead code, + cleanups
accept start command in dea.X.start message

If specified, the command will be used instead of the buildpack's
command on startup.

[#54660280]
Revert "dir server: fix global logger type"

This reverts commit 21412c07987aa5ccfb331d3ee68e6d08ac29d956.
fix failure text for missing start command
fix spec for staging download failure
Updated gem dependencies to use proper timestamps in loggregator messsages
Merge pull request #60 from cloudfoundry/loggregator_gem_update

Updated gem dependencies to use proper timestamps in loggregator messsages
fix steno logger type once and for all

anyone who cannot compile this is wrong

deal with it
don't send task log when staging completes

This was used for synchronous staging, which is no longer implemented.

[finishes #52179455]
make integration tests runnable in a deployed env
run locally, against a remote bosh-deployed dea

Configure by editing spec/integration/config.yml; contains SSH host/user/port
of the VM running the DEA.
fix cleanup of fake file server
update integration tests to not use task_log

also update integration config to use the static IP we configure in
cf-release warden infrastructure

and fix some potential flakiness