Update gems to resolve dependencies on NixOS

Gemfile

@@ -1,7 +1,7 @@
 source 'https://rubygems.org'
 
 group :development do
-  gem 'vagrant', git: 'https://github.com/mitchellh/vagrant.git', tag: 'v1.7.2'
+  gem 'vagrant', git: 'https://github.com/mitchellh/vagrant.git', tag: 'v1.7.4'
   gem 'guard'
   gem 'guard-rspec'
   gem 'rb-inotify'

Gemfile.lock

@@ -1,12 +1,12 @@
 GIT
   remote: https://github.com/fgrehm/vagrant-cachier.git
-  revision: 9f6b615e84364b851939a8e7ee8229fc0d276c73
+  revision: 40dddfb368526948e769492a00a7937c5a044a4d
   specs:
-    vagrant-cachier (1.1.0)
+    vagrant-cachier (1.2.1)
 
 GIT
   remote: https://github.com/fgrehm/vagrant-pristine.git
-  revision: 503dbc47848c81d0fbfa6840491856f518d244a1
+  revision: 6d044265db17451c606f000bf43437e95a742bb4
   specs:
     vagrant-pristine (0.3.0)
 
@@ -22,16 +22,16 @@ GIT
 
 GIT
   remote: https://github.com/mitchellh/vagrant.git
-  revision: 1cd667b243f4a263cd5322b6455165cc676b6f7f
+  revision: 78ea5e4a78ce644717ab16d8001ab77430168f0f
-  tag: v1.7.2
+  tag: v1.7.4
   specs:
-    vagrant (1.7.2)
+    vagrant (1.7.4)
-      bundler (>= 1.5.2, < 1.8.0)
+      bundler (>= 1.5.2, <= 1.10.5)
       childprocess (~> 0.5.0)
       erubis (~> 2.7.0)
       hashicorp-checkpoint (~> 0.1.1)
-      i18n (~> 0.6.0)
+      i18n (>= 0.6.0, <= 0.8.0)
-      listen (~> 2.8.0)
+      listen (~> 3.0.2)
       log4r (~> 1.1.9, < 1.1.11)
       net-scp (~> 1.1.0)
       net-sftp (~> 2.1)
@@ -40,7 +40,8 @@ GIT
       rb-kqueue (~> 0.2.0)
       rest-client (>= 1.6.0, < 2.0)
       wdm (~> 0.1.0)
-      winrm (~> 1.1.3)
+      winrm (~> 1.3)
+      winrm-fs (~> 0.2.0)
 
 PATH
   remote: .
@@ -50,52 +51,44 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    akami (1.2.2)
-      gyoku (>= 0.4.0)
-      nokogiri
     builder (3.2.2)
-    celluloid (0.16.0)
+    childprocess (0.5.6)
-      timers (~> 4.0.0)
-    childprocess (0.5.5)
       ffi (~> 1.0, >= 1.0.11)
     coderay (1.1.0)
-    coveralls (0.7.1)
+    coveralls (0.7.2)
       multi_json (~> 1.3)
-      rest-client
+      rest-client (= 1.6.7)
       simplecov (>= 0.7)
-      term-ansicolor
+      term-ansicolor (= 1.2.2)
-      thor
+      thor (= 0.18.1)
     diff-lcs (1.2.5)
     docile (1.1.5)
     erubis (2.7.0)
-    ffi (1.9.6)
+    ffi (1.9.10)
     formatador (0.2.5)
-    gssapi (1.0.3)
+    gssapi (1.2.0)
       ffi (>= 1.0.1)
-    guard (2.11.1)
+    guard (2.12.8)
       formatador (>= 0.2.4)
-      listen (~> 2.7)
+      listen (>= 2.7, <= 4.0)
       lumberjack (~> 1.0)
       nenv (~> 0.1)
       notiffany (~> 0.0)
       pry (>= 0.9.12)
       shellany (~> 0.0)
       thor (>= 0.18.1)
-    guard-compat (1.2.0)
+    guard-compat (1.2.1)
-    guard-rspec (4.5.0)
+    guard-rspec (4.6.2)
       guard (~> 2.1)
       guard-compat (~> 1.1)
       rspec (>= 2.99.0, < 4.0)
-    gyoku (1.2.2)
+    gyoku (1.3.1)
       builder (>= 2.1.2)
     hashicorp-checkpoint (0.1.4)
-    hitimes (1.2.2)
     httpclient (2.6.0.1)
-    httpi (0.9.7)
+    i18n (0.7.0)
-      rack
+    json (1.8.3)
-    i18n (0.6.11)
+    listen (3.0.2)
-    listen (2.8.5)
-      celluloid (>= 0.15.2)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
     little-plugger (1.1.3)
@@ -105,36 +98,33 @@ GEM
       multi_json (>= 1.8.4)
     lumberjack (1.0.9)
     method_source (0.8.2)
-    mime-types (2.4.3)
+    mime-types (2.6.1)
     mini_portile (0.6.0)
-    multi_json (1.10.1)
+    multi_json (1.11.2)
-    nenv (0.1.1)
+    nenv (0.2.0)
     net-scp (1.1.2)
       net-ssh (>= 2.6.5)
     net-sftp (2.1.2)
       net-ssh (>= 2.6.5)
-    net-ssh (2.9.1)
+    net-ssh (2.9.2)
-    netrc (0.10.2)
     nokogiri (1.6.3.1)
       mini_portile (= 0.6.0)
-    nori (1.1.5)
+    nori (2.6.0)
-    notiffany (0.0.2)
+    notiffany (0.0.6)
       nenv (~> 0.1)
       shellany (~> 0.0)
     pry (0.10.1)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    rack (1.6.0)
     rake (10.4.2)
-    rb-fsevent (0.9.4)
+    rb-fsevent (0.9.5)
     rb-inotify (0.9.5)
       ffi (>= 0.5.0)
-    rb-kqueue (0.2.3)
+    rb-kqueue (0.2.4)
       ffi (>= 0.5.0)
-    rest-client (1.7.2)
+    rest-client (1.6.7)
-      mime-types (>= 1.16, < 3.0)
+      mime-types (>= 1.16)
-      netrc (~> 0.7)
     rspec (2.99.0)
       rspec-core (~> 2.99.0)
       rspec-expectations (~> 2.99.0)
@@ -142,42 +132,37 @@ GEM
     rspec-core (2.99.2)
     rspec-expectations (2.99.2)
       diff-lcs (>= 1.1.3, < 2.0)
-    rspec-mocks (2.99.2)
+    rspec-mocks (2.99.4)
-    rubyntlm (0.1.1)
+    rubyntlm (0.4.0)
-    savon (0.9.5)
+    rubyzip (1.1.7)
-      akami (~> 1.0)
-      builder (>= 2.1.2)
-      gyoku (>= 0.4.0)
-      httpi (~> 0.9)
-      nokogiri (>= 1.4.0)
-      nori (~> 1.0)
-      wasabi (~> 1.0)
     shellany (0.0.1)
-    simplecov (0.9.1)
+    simplecov (0.10.0)
       docile (~> 1.1.0)
-      multi_json (~> 1.0)
+      json (~> 1.8)
-      simplecov-html (~> 0.8.0)
+      simplecov-html (~> 0.10.0)
-    simplecov-html (0.8.0)
+    simplecov-html (0.10.0)
     slop (3.6.0)
-    term-ansicolor (1.3.0)
+    term-ansicolor (1.2.2)
-      tins (~> 1.0)
+      tins (~> 0.8)
     thor (0.18.1)
-    timers (4.0.1)
+    tins (0.13.2)
-      hitimes
-    tins (1.3.3)
     uuidtools (2.1.5)
     vagrant-omnibus (1.4.1)
-    wasabi (1.0.0)
+    wdm (0.1.1)
-      nokogiri (>= 1.4.0)
+    winrm (1.3.3)
-    wdm (0.1.0)
+      builder (>= 2.1.2)
-    winrm (1.1.3)
+      gssapi (~> 1.2)
-      gssapi (~> 1.0.0)
+      gyoku (~> 1.0)
       httpclient (~> 2.2, >= 2.2.0.2)
       logging (~> 1.6, >= 1.6.1)
-      nokogiri (~> 1.5)
+      nori (~> 2.0)
-      rubyntlm (~> 0.1.1)
+      rubyntlm (~> 0.4.0)
-      savon (= 0.9.5)
       uuidtools (~> 2.1.2)
+    winrm-fs (0.2.0)
+      erubis (~> 2.7)
+      logging (~> 1.6, >= 1.6.1)
+      rubyzip (~> 1.1)
+      winrm (~> 1.3.0)
 
 PLATFORMS
   ruby