Bump ruby-prof to 1.0.0

This is significant improvement over the previous releases:
https://github.com/ruby-prof/ruby-prof/blob/master/CHANGES

Gemfile

@@ -399,7 +399,7 @@ gem 'mail_room', '~> 0.9.1'
 gem 'email_reply_trimmer', '~> 0.1'
 gem 'html2text'
 
-gem 'ruby-prof', '~> 0.17.0'
+gem 'ruby-prof', '~> 1.0.0'
 gem 'rbtrace', '~> 0.4', require: false
 gem 'memory_profiler', '~> 0.9', require: false
 gem 'benchmark-memory', '~> 0.1', require: false

Gemfile.lock

@@ -836,7 +836,7 @@ GEM
       i18n
     ruby-fogbugz (0.2.1)
       crack (~> 0.4)
-    ruby-prof (0.17.0)
+    ruby-prof (1.0.0)
     ruby-progressbar (1.10.1)
     ruby-saml (1.7.2)
       nokogiri (>= 1.5.10)
@@ -1215,7 +1215,7 @@ DEPENDENCIES
   rubocop-performance (~> 1.1.0)
   rubocop-rspec (~> 1.22.1)
   ruby-fogbugz (~> 0.2.1)
-  ruby-prof (~> 0.17.0)
+  ruby-prof (~> 1.0.0)
   ruby-progressbar
   ruby_parser (~> 3.8)
   rubyzip (~> 1.2.2)