After thinking about it, I find little gain, and greater difficulty by not including the Gemfile.lock. It was fun while it lasted. fix #568

Gemfile.lock

@@ -0,0 +1,69 @@
+GEM
+  remote: http://rubygems.org/
+  specs:
+    RedCloth (4.2.9)
+    albino (1.3.3)
+      posix-spawn (>= 0.3.6)
+    blankslate (2.1.2.4)
+    chunky_png (1.2.5)
+    classifier (1.3.3)
+      fast-stemmer (>= 1.0.0)
+    compass (0.12.1)
+      chunky_png (~> 1.2)
+      fssm (>= 0.2.7)
+      sass (~> 3.1)
+    directory_watcher (1.4.1)
+    fast-stemmer (1.0.1)
+    ffi (1.0.11)
+    fssm (0.2.9)
+    haml (3.1.6)
+    jekyll (0.11.2)
+      albino (~> 1.3)
+      classifier (~> 1.3)
+      directory_watcher (~> 1.1)
+      kramdown (~> 0.13)
+      liquid (~> 2.3)
+      maruku (~> 0.5)
+    kramdown (0.13.6)
+    liquid (2.3.0)
+    maruku (0.6.0)
+      syntax (>= 1.0.0)
+    posix-spawn (0.3.6)
+    pygments.rb (0.2.12)
+      rubypython (~> 0.5.3)
+    rack (1.4.1)
+    rack-protection (1.2.0)
+      rack
+    rake (0.9.2.2)
+    rb-fsevent (0.9.1)
+    rdiscount (1.6.8)
+    rubypants (0.2.0)
+    rubypython (0.5.3)
+      blankslate (>= 2.1.2.3)
+      ffi (~> 1.0.7)
+    sass (3.1.18)
+    sinatra (1.3.2)
+      rack (~> 1.3, >= 1.3.6)
+      rack-protection (~> 1.2)
+      tilt (~> 1.3, >= 1.3.3)
+    stringex (1.4.0)
+    syntax (1.0.0)
+    tilt (1.3.3)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  RedCloth (~> 4.2.9)
+  compass (~> 0.12.1)
+  haml (~> 3.1.6)
+  jekyll (~> 0.11.2)
+  liquid (~> 2.3.0)
+  pygments.rb (~> 0.2.12)
+  rack (~> 1.4.1)
+  rake (~> 0.9.2)
+  rb-fsevent (~> 0.9)
+  rdiscount (~> 1.6.8)
+  rubypants (~> 0.2.0)
+  sinatra (~> 1.3.2)
+  stringex (~> 1.4.0)