Build: Remove json check for jscs config
Build: Add "browser" keyword for npm
Build: Spaces vs tabs

* Use tabs instead of spaces in jscs config

* Always use spaces in package.json (really hope this is temporary)
Effects: Respect display value on inline elements

Take "olddisplay" value into the account

Fixes #14824
Closes gh-1566
Ref 73fe17299a840a8a7f3ffffcac15e32a88bd3d66
Data: Work around IE11 bug with onpageshow attribute

Fixes #14894