Merge pull request #66 from jupyter-widgets/dependabot/npm_and_yarn/underscore-1.13.1

Bump underscore from 1.12.0 to 1.13.1

Author: SylvainCorlay

yarn.lock

@@ -5446,9 +5446,9 @@ ultron@~1.1.0:
   integrity sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og==
 
 underscore@>=1.7.0, underscore@^1.8.3:
-  version "1.12.0"
-  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.12.0.tgz#4814940551fc80587cef7840d1ebb0f16453be97"
-  integrity sha512-21rQzss/XPMjolTiIezSu3JAjgagXKROtNrYFEOWK109qY1Uv2tVjPTZ1ci2HgvQDA16gHYSthQIJfB+XId/rQ==
+  version "1.13.1"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.13.1.tgz#0c1c6bd2df54b6b69f2314066d65b6cde6fcf9d1"
+  integrity sha512-hzSoAVtJF+3ZtiFX0VgfFPHEDRm7Y/QPjGyNo4TVdnDTdft3tr8hEkD25a1jC+TjTuE7tkHGKkhwCgs9dgBB2g==
 
 uniq@^1.0.1:
   version "1.0.1"