Don't show error when RAILS_GROUP == assets
Initialize Oboe::Config[:access_key] to avoid unneeded warnings
Add Ruby 2.1.0 to Travis
Report c extension load errors to the dashboard
Don't return unitialized X-Trace values
Use inspect instead of to_s for 1.8 compatibility:
http://stackoverflow.com/questions/12678218/difference-in-arrayto-s-in-ruby-1-8-and-ruby-1-9
Merge pull request #17 from appneta/issue_17

No need for "Missing TraceView libraries" error msg on asset precompile
Merge pull request #16 from appneta/issue_16

Provide Redis Instrumentation
Merge pull request #20 from appneta/issue_20

Errant warning when instrumenting Ruby scripts
Merge pull request #21 from appneta/issue_21

Add Ruby 2.1.0 to Travis Tests
Merge pull request #22 from appneta/issue_22

Report C extension load failure in Error __Init key
Merge pull request #5 from appneta/issue_5

ruby standalone returning 1B0000000... id in X-Trace HTTP header
Merge branch 'master' into issue_25

Conflicts:
	lib/oboe/api/layerinit.rb