Add temporary workaround for failing build on Ruby 1.8.7

sferik · sferik · commit 7d00ea4c8bff · 2013-12-30T19:08:43.000+01:00
Rubygems broke builds on Ruby 1.8.7: travis-ci/travis-ci#1793 rubygems/rubygems#763 This patch is a temporary workaround until rubygems is updated.
diff --git a/.travis.yml b/.travis.yml
@@ -1,3 +1,8 @@
+before_install:
+  - gem update bundler
+  - bundle --version
+  - gem update --system 2.1.11
+  - gem --version
 bundler_args: --without development
 language: ruby
 rvm:
