make WP8 device-width hack code fully consistent between docs HTML & docs JS
add X-UA-Compatible <meta> to basic template
Merge pull request #12288 from twbs/x-ua-compat

add X-UA-Compatible <meta> to basic template
Improve <meta> tags
Merge pull request #12292 from ZDroid/meta

Improve <meta> tags
Make head elements order uniform across templates and examples
Additional changes to #12275 and #12292
Merge pull request #12297 from Quy/master

Additional changes to #12275 and #12292
More "LESS" to "Less" changes
Merge pull request #12302 from Quy/master

More "LESS" to "Less" changes
Improve grunt config and vars
s3_cache.py: fix name in USAGE message
grunt build-customizer-vars-form
Merge pull request #12295 from ZDroid/types

Improve grunt config and vars