Merge branch 'docs-vue-templates' into 'master'

Rename VUE JS to Vue

See merge request gitlab-org/gitlab-ce!17649

doc/development/i18n/externalization.md

@@ -45,7 +45,7 @@ We basically have 4 types of files:
 1. Ruby files: basically Models and Controllers.
 1. HAML files: these are the view files.
 1. ERB files: used for email templates.
-1. JavaScript files: we mostly need to work with VUE JS templates.
+1. JavaScript files: we mostly need to work with Vue templates.
 
 ### Ruby files