Add byebug to GitLab QA gem list for debugging

qa/Gemfile

 source 'https://rubygems.org'
 
+gem 'pry-byebug', '~> 3.4.1', platform: :mri
 gem 'capybara', '~> 2.12.1'
 gem 'capybara-screenshot', '~> 1.0.14'
 gem 'rake', '~> 12.0.0'

qa/Gemfile.lock

@@ -3,6 +3,7 @@ GEM
   specs:
     addressable (2.5.0)
       public_suffix (~> 2.0, >= 2.0.2)
+    byebug (9.0.6)
     capybara (2.12.1)
       addressable
       mime-types (>= 1.16)
@@ -13,22 +14,27 @@ GEM
     capybara-screenshot (1.0.14)
       capybara (>= 1.0, < 3)
       launchy
-    capybara-webkit (1.12.0)
-      capybara (>= 2.3.0, < 2.13.0)
-      json
     childprocess (0.7.0)
       ffi (~> 1.0, >= 1.0.11)
+    coderay (1.1.1)
     diff-lcs (1.3)
     ffi (1.9.18)
-    json (2.0.3)
     launchy (2.4.3)
       addressable (~> 2.3)
+    method_source (0.8.2)
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     mini_portile2 (2.1.0)
     nokogiri (1.7.0.1)
       mini_portile2 (~> 2.1.0)
+    pry (0.10.4)
+      coderay (~> 1.1.0)
+      method_source (~> 0.8.1)
+      slop (~> 3.4)
+    pry-byebug (3.4.2)
+      byebug (~> 9.0)
+      pry (~> 0.10)
     public_suffix (2.0.5)
     rack (2.0.1)
     rack-test (0.6.3)
@@ -52,6 +58,7 @@ GEM
       childprocess (~> 0.5)
       rubyzip (~> 1.0)
       websocket (~> 1.0)
+    slop (3.6.0)
     websocket (1.2.4)
     xpath (2.0.0)
       nokogiri (~> 1.3)
@@ -62,7 +69,7 @@ PLATFORMS
 DEPENDENCIES
   capybara (~> 2.12.1)
   capybara-screenshot (~> 1.0.14)
-  capybara-webkit (~> 1.12.0)
+  pry-byebug (~> 3.4.1)
   rake (~> 12.0.0)
   rspec (~> 3.5)
   selenium-webdriver (~> 2.53)