Update gem bundle

Author: stomar

Gemfile.lock

@@ -2,7 +2,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     blankslate (2.1.2.4)
-    classifier-reborn (2.0.3)
+    classifier-reborn (2.0.4)
       fast-stemmer (~> 1.0)
     coffee-script (2.4.1)
       coffee-script-source
@@ -29,7 +29,7 @@ GEM
       toml (~> 0.1.0)
     jekyll-coffeescript (1.0.1)
       coffee-script (~> 2.2)
-    jekyll-gist (1.3.4)
+    jekyll-gist (1.3.5)
     jekyll-paginate (1.1.0)
     jekyll-sass-converter (1.3.0)
       sass (~> 3.2)
@@ -38,7 +38,7 @@ GEM
     kgio (2.10.0)
     kramdown (1.9.0)
     liquid (2.6.3)
-    listen (3.0.3)
+    listen (3.0.4)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
     mercenary (0.3.5)
@@ -75,7 +75,7 @@ GEM
       nokogiri (~> 1.3)
     toml (0.1.2)
       parslet (~> 1.5.0)
-    unicorn (4.9.0)
+    unicorn (5.0.0)
       kgio (~> 2.6)
       rack
       raindrops (~> 0.7)