Merge pull request #59 from ginzarb/dependabot/bundler/rexml-3.3.6

Bump rexml from 3.3.3 to 3.3.6

Author: y-yagi

Gemfile.lock

@@ -82,7 +82,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rexml (3.3.3)
+    rexml (3.3.6)
       strscan
     sassc (2.4.0)
       ffi (~> 1.9)