Updated snapshot tests

package.json

scripts/build

scripts/clean

scripts/flow

scripts/help

scripts/lint

scripts/start

scripts/test

scripts/travis

...ows 7 0.0.0/layout/md-nav--primary/@mobile/landscape.json

...dows 7 0.0.0/layout/md-nav--primary/@mobile/portrait.json

....3071/Windows 7 0.0.0/layout/md-nav--primary/@screen.json

...ows 7 0.0.0/layout/md-nav--primary/@tablet/landscape.json

...dows 7 0.0.0/layout/md-nav--primary/@tablet/portrait.json

.../Mac OS X 10.11.6/extensions/admonition/#bug/@screen.json

... 10.11.6/extensions/admonition/#custom-title/@screen.json

...c OS X 10.11.6/extensions/admonition/#danger/@screen.json

...X 10.11.6/extensions/admonition/#empty-title/@screen.json

... OS X 10.11.6/extensions/admonition/#failure/@screen.json

... X 10.11.6/extensions/admonition/#long-title/@screen.json