Merge branch 'update-ruby-prof' into 'master'

Update ruby-prof 0.16.2 -> 0.17.0

See merge request gitlab-org/gitlab-ce!17710

Gemfile

@@ -388,7 +388,7 @@ gem 'mail_room', '~> 0.9.1'
 gem 'email_reply_trimmer', '~> 0.1'
 gem 'html2text'
 
-gem 'ruby-prof', '~> 0.16.2'
+gem 'ruby-prof', '~> 0.17.0'
 
 # OAuth
 gem 'oauth2', '~> 1.4'

Gemfile.lock

@@ -802,7 +802,7 @@ GEM
       i18n
     ruby-fogbugz (0.2.1)
       crack (~> 0.4)
-    ruby-prof (0.16.2)
+    ruby-prof (0.17.0)
     ruby-progressbar (1.9.0)
     ruby-saml (1.4.1)
       nokogiri (>= 1.5.10)
@@ -1172,7 +1172,7 @@ DEPENDENCIES
   rubocop (~> 0.52.1)
   rubocop-rspec (~> 1.22.1)
   ruby-fogbugz (~> 0.2.1)
-  ruby-prof (~> 0.16.2)
+  ruby-prof (~> 0.17.0)
   ruby_parser (~> 3.8)
   rufus-scheduler (~> 3.4)
   rugged (~> 0.26.0)