Removes "global-style" setting for npm

Backports PR #9256

**Commit 1:**
Removes "global-style" setting for npm

This change, which was originally introduced in #9136, resulted in much
larger installs for Kibana (50MB larger in dev mode), which isn't a
reasonable tradeoff for the convenience that global-style provides.

* Original sha: bdf4c68
* Authored by Court Ewing <court@epixa.com> on 2016-11-29T20:29:43Z

.npmrc

@@ -1,2 +1 @@
 save-exact=true
-global-style=true