Allow serving to non-localhost clients, for testing on devices.
Fix Python SimpleHTTPServer module name
Merge pull request #496 from BrianGeppert/master

Fix repeated typo from “x is y” to “x in y”, fixed use of non-possessive...
Merge pull request #494 from Electron-libre/patch-1

Fix Python SimpleHTTPServer module name
Assorted tutorial fixes. Requires updated version of tutorial repo.
Style polish and jank cleanup, especially on polyfill/non-Chrome:
- Replace tutorial iframes with static images
- Use a cropped image with rendered fadeout for designer image
- Fix demo tiles not wrapping on Safari
- Commonize text styling on main page
- Make carousel taller on mobile to accommodate iPhone width
- Fix style leak for designer button in polyfill
Merge branch 'master' of https://github.com/Polymer/docs into tutorial-updates

Conflicts:
	docs/start/tutorial/intro.md
crush images
Fix merge conflict
Update screenshot style to match intro
Update sample files, too
Fixes #462
Add back generic shared styling classes
Merge pull request #490 from Polymer/serve-remotely

Allow serving to non-localhost clients, for testing on devices.
Fix link to paper-elements
fix typo and broken link in runtime config doc
Merge pull request #504 from teeler/master

fix typo and broken link in runtime config doc
Fix for a spelling error in the docs.

It's "ensure", not "insure".
Better regex testing for docs
Merge branch 'master' of https://github.com/Polymer/docs