Don't use 'jekyll-assets' anymore.

Gemfile.lock

@@ -12,7 +12,6 @@ GEM
       execjs
     coffee-script-source (1.7.0)
     colorator (0.1)
-    commonjs (0.2.7)
     em-websocket (0.5.1)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
@@ -31,7 +30,6 @@ GEM
       em-websocket (~> 0.5)
       guard (~> 2.0)
       multi_json (~> 1.8)
-    hike (1.2.3)
     http_parser.rb (0.6.0)
     jekyll (2.1.0)
       classifier (~> 1.3)
@@ -48,12 +46,6 @@ GEM
       redcarpet (~> 3.1)
       safe_yaml (~> 1.0)
       toml (~> 0.1.0)
-    jekyll-assets (0.8.0)
-      jekyll (>= 1.0.0, < 3.0.0)
-      sass
-      sprockets (~> 2.10)
-      sprockets-helpers
-      sprockets-sass
     jekyll-coffeescript (1.0.0)
       coffee-script (~> 2.2)
     jekyll-gist (1.1.0)
@@ -63,8 +55,6 @@ GEM
     jekyll-watch (1.0.0)
       listen (~> 2.7)
     kramdown (1.4.0)
-    less (2.6.0)
-      commonjs (~> 0.2.7)
     libv8 (3.16.14.3)
     liquid (2.6.1)
     listen (2.7.9)
@@ -85,7 +75,6 @@ GEM
     pygments.rb (0.6.0)
       posix-spawn (~> 0.3.6)
       yajl-ruby (~> 1.1.0)
-    rack (1.5.2)
     rb-fsevent (0.9.4)
     rb-inotify (0.9.5)
       ffi (>= 0.5.0)
@@ -94,26 +83,14 @@ GEM
     safe_yaml (1.0.3)
     sass (3.3.9)
     slop (3.5.0)
-    sprockets (2.12.1)
-      hike (~> 1.2)
-      multi_json (~> 1.0)
-      rack (~> 1.0)
-      tilt (~> 1.1, != 1.3.0)
-    sprockets-helpers (1.1.0)
-      sprockets (~> 2.0)
-    sprockets-sass (1.1.0)
-      sprockets (~> 2.0)
-      tilt (~> 1.1)
     therubyracer (0.12.1)
       libv8 (~> 3.16.14.0)
       ref
     thor (0.19.1)
-    tilt (1.4.1)
     timers (1.1.0)
     toml (0.1.1)
       parslet (~> 1.5.0)
     yajl-ruby (1.1.0)
-    yui-compressor (0.12.0)
 
 PLATFORMS
   ruby
@@ -121,7 +98,4 @@ PLATFORMS
 DEPENDENCIES
   guard-livereload
   jekyll (~> 2.1.0)
-  jekyll-assets
-  less
   therubyracer
-  yui-compressor