Merge pull request #29 from modess/dependabot/bundler/rexml-3.3.9

Bump rexml from 3.2.5 to 3.3.9

Author: Niklas Modess

Gemfile.lock

@@ -80,7 +80,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.5)
+    rexml (3.3.9)
     rouge (4.0.0)
     safe_yaml (1.0.5)
     sassc (2.4.0)