Allow Capybara 2.6 - drop 2.4 from travis testing

.travis.yml

@@ -22,7 +22,7 @@ addons:
 matrix:
   include:
     - rvm: 1.9.3
-      gemfile: gemfiles/2.4.gemfile
+      gemfile: gemfiles/2.6.gemfile
       env: QMAKE=/usr/lib/x86_64-linux-gnu/qt5/bin/qmake
     - rvm: 1.9.3
       gemfile: gemfiles/2.5.gemfile
@@ -33,7 +33,7 @@ matrix:
   allow_failures:
     - gemfile: gemfiles/master.gemfile
 gemfile:
-  - gemfiles/2.4.gemfile
+  - gemfiles/2.6.gemfile
   - gemfiles/2.5.gemfile
 before_install:
   - gem install bundler

capybara-webkit.gemspec

@@ -19,7 +19,7 @@ Gem::Specification.new do |s|
 
   s.required_ruby_version = ">= 1.9.0"
 
-  s.add_runtime_dependency("capybara", ">= 2.3.0", "< 2.6.0")
+  s.add_runtime_dependency("capybara", ">= 2.3.0", "< 2.7.0")
   s.add_runtime_dependency("json")
 
   s.add_development_dependency("rspec", "~> 2.14.0")

gemfiles/2.4.gemfile

@@ -3,5 +3,6 @@
 source "https://rubygems.org"
 
 gem "capybara", "~> 2.4.0"
+gem "mime-types", "<3.0", platforms: [:ruby_19]
 
 gemspec :path=>"../"

gemfiles/2.5.gemfile

@@ -3,5 +3,6 @@
 source "https://rubygems.org"
 
 gem "capybara", "~> 2.5.0"
+gem "mime-types", "<3.0", platforms: [:ruby_19]
 
 gemspec :path=>"../"

gemfiles/2.6.gemfile

@@ -0,0 +1,8 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "capybara", "~> 2.6.0"
+gem "mime-types", "<3.0", platforms: [:ruby_19]
+
+gemspec :path=>"../"

gemfiles/2.6.gemfile.lock

@@ -0,0 +1,81 @@
+PATH
+  remote: ../
+  specs:
+    capybara-webkit (1.7.1)
+      capybara (>= 2.3.0, < 2.7.0)
+      json
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    addressable (2.4.0)
+    appraisal (0.4.1)
+      bundler
+      rake
+    capybara (2.6.0)
+      addressable
+      mime-types (>= 1.16)
+      nokogiri (>= 1.3.3)
+      rack (>= 1.0.0)
+      rack-test (>= 0.5.4)
+      xpath (~> 2.0)
+    childprocess (0.5.9)
+      ffi (~> 1.0, >= 1.0.11)
+    diff-lcs (1.2.5)
+    ffi (1.9.10)
+    json (1.8.3)
+    launchy (2.4.3)
+      addressable (~> 2.3)
+    mime-types (2.99)
+    mime-types-data (3.2015.1120)
+    mini_magick (4.3.6)
+    mini_portile2 (2.0.0)
+    multi_json (1.11.2)
+    nokogiri (1.6.7.2)
+      mini_portile2 (~> 2.0.0.rc2)
+    rack (1.6.4)
+    rack-protection (1.5.3)
+      rack
+    rack-test (0.6.3)
+      rack (>= 1.0)
+    rake (10.5.0)
+    rspec (2.14.1)
+      rspec-core (~> 2.14.0)
+      rspec-expectations (~> 2.14.0)
+      rspec-mocks (~> 2.14.0)
+    rspec-core (2.14.8)
+    rspec-expectations (2.14.5)
+      diff-lcs (>= 1.1.3, < 2.0)
+    rspec-mocks (2.14.6)
+    rubyzip (1.1.7)
+    selenium-webdriver (2.49.0)
+      childprocess (~> 0.5)
+      multi_json (~> 1.0)
+      rubyzip (~> 1.0)
+      websocket (~> 1.0)
+    sinatra (1.4.6)
+      rack (~> 1.4)
+      rack-protection (~> 1.4)
+      tilt (>= 1.3, < 3)
+    tilt (2.0.2)
+    websocket (1.2.2)
+    xpath (2.0.0)
+      nokogiri (~> 1.3)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  appraisal (~> 0.4.0)
+  capybara (~> 2.6.0)
+  capybara-webkit!
+  launchy
+  mime-types (< 3.0)
+  mini_magick
+  rake
+  rspec (~> 2.14.0)
+  selenium-webdriver
+  sinatra
+
+BUNDLED WITH
+   1.11.2