[em-redis] updated em-redis-unified version lock
           - fixes reconnect w/ auth and/or db select
Merge pull request #639 from portertech/em-redis

updated em-redis-unified version lock, fixing reconnect w/ auth
[profilers] "profilers" extension category, created a ruby-prof profiler
[profilers] only print > 10%
[profilers] wrote a gc profiler
[profilers] don't need ruby-prof as a dev dependency
[profilers] gc profiler may have not reported
Merge pull request #640 from portertech/profilers

"profilers" extension category, created profilers
minor version bump
[deep_diff_redact] redact sensitive info from deep diff
[amq-protocol] lock amq-protocol at 1.2.0 to fix dependency resolution
Merge pull request #642 from portertech/deep_diff_redact

redact sensitive info from deep diff
[oj] revert to oj 2.0.9, until the leak is identified
Merge pull request #643 from portertech/amq-protocol

lock amq-protocol at 1.2.0 to fix dependency resolution
Merge pull request #644 from portertech/oj

revert to oj 2.0.9, until the leak is identified
minor version bump, updated changelog
[amq-client] pin all amqp related libraries
Merge pull request #645 from portertech/amq-client

pin all amqp related libraries
[silence] POST /silence, validate params, /request & /resolve
[silence] experimenting w/ a read_data() helper