Mongo >= 1.10 uses @client instead of @connection
Bundle update
Lock Padrino to Ruby 1.9.3+
Better Ruby version tests.
Padrino runs under Ruby 1.9.3+
When Oboe.tracing is false, no content was shown, and the original render was not executed.
Move SampleSource/Rate reporting to the entry event.
Updated tests to follow KV moves
Merge pull request #50 from appneta/issue_50

Move SampleRate/Source reporting to the Entry Event
Merge pull request #48 from appneta/issue_48

KV Collection Failure under Mongo version >= 1.10
Bump gem version to 2.6.5
Updated dependency specs per rubygems
Updated lockfile to follow dependency updates.
Bump gem build number
Updated gemspec version specifiers.
Update Travis Ruby version to 2.1.1 from 2.1.0
Lock memcached to 1.7.2 until 1.8.0 stabilizes
Specify min ruby version req'd: '>= 1.8.6'
Bump gem version to 2.6.5.4
Update CHANGELOG with release info.