Merge pull request #400 from rubyforgood/dependabot/bundler/spring-2.1.1

Bump spring from 2.1.0 to 2.1.1

Author: edwinthinks

Gemfile.lock

@@ -373,7 +373,7 @@ GEM
       simplecov-html (~> 0.11)
     simplecov-html (0.12.2)
     slop (3.6.0)
-    spring (2.1.0)
+    spring (2.1.1)
     spring-watcher-listen (2.0.1)
       listen (>= 2.7, < 4.0)
       spring (>= 1.2, < 3.0)