Log errors in thread
Bump to v0.8.15 [ci skip]
Merge branch 'master' into develop

Conflicts:
	CHANGELOG.md
	lib/appsignal/version.rb
Bump to v0.9.0 [ci skip]
Tweak logging
Bump to v0.9.1 [ci skip]
Add capistrano2 and capistrano3 to Travis
Lock Rspec to 2.14 series for now
Use robots.txt in Net::HTTP test
Make Net::HTTP instrumention record host in 1.9.3
rake bundle_and_spec_all

This runs the specs for every gemfile in every Ruby version we support.
Use utc in fixed_time spec helper
Stub Net::HTTP request because CI's don't allow outbound traffic
Crash specs if a Ruby version we expect is not installed
Use rvm in rake bundle_and_spec_all if it's available
Send initial rvm output to /dev/null
Only expect request once in Net::HTTP spec
Add message about using rbenv or rvm
Update README
Use webmock to stub HTTP requests