remove hubble, and in the process also update sentry

Gemfile.lock

@@ -1,6 +1,6 @@
 GIT
   remote: git://github.com/getsentry/raven-ruby.git
-  revision: f6a97f1544480645c4dfdb4d1e9e97ede1e737a9
+  revision: e520389a56d099276c167d8b442967c7fa549ecd
   specs:
     sentry-raven (0.4.3)
       faraday (>= 0.7.6)
@@ -90,7 +90,6 @@ PATH
   specs:
     travis-api (0.0.1)
       backports (~> 2.5)
-      hubble (~> 0.1)
       newrelic_rpm (~> 3.5.0)
       pg (~> 0.13.2)
       rack-contrib (~> 1.1)
@@ -162,8 +161,6 @@ GEM
     hashr (0.0.22)
     hike (1.2.1)
     hitimes (1.2.0)
-    hubble (0.1.2)
-      yajl-ruby (~> 1.1)
     i18n (0.6.1)
     journey (1.0.4)
     json (1.7.7)
@@ -275,7 +272,6 @@ GEM
       polyglot (>= 0.3.1)
     tzinfo (0.3.35)
     uuidtools (2.1.3)
-    yajl-ruby (1.1.0)
     yard (0.8.4.1)
 
 PLATFORMS

travis-api.gemspec

@@ -163,7 +163,6 @@ Gem::Specification.new do |s|
   s.add_dependency 'travis-support'
   s.add_dependency 'travis-core'
 
-  s.add_dependency 'hubble',          '~> 0.1'
   s.add_dependency 'backports',       '~> 2.5'
   s.add_dependency 'pg',              '~> 0.13.2'
   s.add_dependency 'newrelic_rpm',    '~> 3.5.0'