Add core_ext.rb to gemspec.

braid.gemspec

@@ -11,7 +11,7 @@ Gem::Specification.new do |s|
   s.description = %q{A simple tool for tracking vendor branches in git.}
   s.email = %q{evil@che.lu}
   s.executables = ["braid"]
-  s.files = ["bin/braid", "braid.gemspec", "lib/braid/command.rb", "lib/braid/commands/add.rb", "lib/braid/commands/diff.rb", "lib/braid/commands/remove.rb", "lib/braid/commands/setup.rb", "lib/braid/commands/update.rb", "lib/braid/config.rb", "lib/braid/mirror.rb", "lib/braid/operations.rb", "lib/braid.rb", "LICENSE", "Rakefile", "README.textile", "test/braid_test.rb", "test/config_test.rb", "test/fixtures/shiny/README", "test/fixtures/skit1/layouts/layout.liquid", "test/fixtures/skit1/preview.png", "test/fixtures/skit1.1/layouts/layout.liquid", "test/fixtures/skit1.2/layouts/layout.liquid", "test/integration/adding_test.rb", "test/integration/updating_test.rb", "test/integration_helper.rb", "test/mirror_test.rb", "test/operations_test.rb", "test/test_helper.rb"]
+  s.files = ["bin/braid", "braid.gemspec", "lib/braid/command.rb", "lib/braid/commands/add.rb", "lib/braid/commands/diff.rb", "lib/braid/commands/remove.rb", "lib/braid/commands/setup.rb", "lib/braid/commands/update.rb", "lib/braid/config.rb", "lib/braid/mirror.rb", "lib/braid/operations.rb", "lib/braid.rb", "lib/core_ext.rb", "LICENSE", "Rakefile", "README.textile", "test/braid_test.rb", "test/config_test.rb", "test/fixtures/shiny/README", "test/fixtures/skit1/layouts/layout.liquid", "test/fixtures/skit1/preview.png", "test/fixtures/skit1.1/layouts/layout.liquid", "test/fixtures/skit1.2/layouts/layout.liquid", "test/integration/adding_test.rb", "test/integration/updating_test.rb", "test/integration_helper.rb", "test/mirror_test.rb", "test/operations_test.rb", "test/test_helper.rb"]
   s.has_rdoc = false
   s.homepage = %q{http://evil.che.lu/projects/braid}
   s.rdoc_options = ["--line-numbers", "--inline-source", "--title", "braid", "--main"]