Drop Ruby 2.1 support

Ruby 2.1 is EOL as of March; for details, see https://www.ruby-lang.org/en/news/2016/02/24/support-plan-of-ruby-2-0-0-and-2-1/
nanoc · May 20, 2016 · c72feef · c72feef
1 parent 4a48d26
commit c72feef
Showing 1 changed file with 0 additions and 1 deletion.
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,5 @@
 language: ruby
 rvm:
-  - 2.1.2
   - 2.2.2
   - 2.3.0
   - ruby-head