Update Travis build matrix due to Capybara 3 release

.travis.yml

@@ -5,6 +5,7 @@ rvm:
   - 2.2
   - 2.4
   - 2.5
+  - jruby-9.1.16.0
 notifications:
   email: false
 script: xvfb-run bundle exec rake
@@ -28,10 +29,10 @@ matrix:
       env: QMAKE=/usr/lib/x86_64-linux-gnu/qt4/bin/qmake
     - rvm: jruby-19mode
       gemfile: gemfiles/2.15.gemfile
-    - rvm: 2.3.3
+    - rvm: 2.3
+      gemfile: gemfiles/2.15.gemfile
+    - rvm: 2.5
       gemfile: gemfiles/master.gemfile
-    - rvm: jruby-9.1.13.0
-      gemfile: Gemfile
   allow_failures:
     - gemfile: gemfiles/master.gemfile
 gemfile:

Gemfile

@@ -1,4 +1,4 @@
 source "https://rubygems.org"
 
 gemspec
-gem "json", "< 2.0", :platforms=>[:ruby_19, :jruby_19]
+gem "puma"

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    capybara-webkit (1.14.0)
+    capybara-webkit (1.15.0)
       capybara (>= 2.3, < 4.0)
       json
 
@@ -14,17 +14,18 @@ GEM
       bundler
       rake
       thor (>= 0.14.0)
-    capybara (2.17.0)
+    capybara (3.0.1)
       addressable
       mini_mime (>= 0.1.3)
-      nokogiri (>= 1.3.3)
-      rack (>= 1.0.0)
-      rack-test (>= 0.5.4)
-      xpath (>= 2.0, < 4.0)
+      nokogiri (~> 1.8)
+      rack (>= 1.6.0)
+      rack-test (>= 0.6.3)
+      xpath (~> 3.0)
     diff-lcs (1.3)
+    ffi (1.9.18)
     ffi (1.9.18-java)
-    json (1.8.6)
-    json (1.8.6-java)
+    json (2.1.0)
+    json (2.1.0-java)
     launchy (2.4.3)
       addressable (~> 2.3)
     launchy (2.4.3-java)
@@ -34,13 +35,18 @@ GEM
     mini_mime (1.0.0)
     mini_portile2 (2.3.0)
     mustermann (1.0.1)
-    nokogiri (1.8.1)
+    nokogiri (1.8.2)
+      mini_portile2 (~> 2.3.0)
+    nokogiri (1.8.2-java)
+    nokogiri (1.8.2-x86-mingw32)
       mini_portile2 (~> 2.3.0)
     public_suffix (3.0.0)
+    puma (3.11.3)
+    puma (3.11.3-java)
     rack (2.0.3)
     rack-protection (2.0.0)
       rack
-    rack-test (0.8.2)
+    rack-test (1.0.0)
       rack (>= 1.0, < 3)
     rake (11.3.0)
     rspec (3.7.0)
@@ -76,12 +82,12 @@ PLATFORMS
 DEPENDENCIES
   appraisal
   capybara-webkit!
-  json (< 2.0)
   launchy
   mini_magick
+  puma
   rake (< 12.0.0)
   rspec (~> 3.5)
   sinatra
 
 BUNDLED WITH
-   1.16.0
+   1.16.1