Use response events for exit description

[finish #55939908]
discard output when running app instances

[finishes #56671356]
Remove unused config.num_instances
Move debugger out of the test group to development
[#56371214] Snapshot includes syslog_drain_urls
remove tags from factory
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