Remove old requires
SQL error encoder should not operate in-place
Merge pull request #184 from tildeio/fix-sql-error-leak

Fix SQL error handling encoding leak
Check for Excon::Middlewares before installing the probe
Load probes even when agent is disabled
Release 0.3.13
Update gem summary
Creating a probe for instrumenting Redis

Only commands are instrumented—not arguments to those commands. The AUTH
command is not currently instrumented because I suspect it wouldn't
be valuable.