Update runtime config line numbers
Merge pull request #524 from wiltzius/patch-1

Update runtime config line numbers
Update icon docs. Fix missing example. Improve doc on importing icon sets.
release.sh: remove no longer needed tool-private jsons
Group imports & add comments.
Fix paper-tabs documentation in tutorial
Merge pull request #526 from arthurevans/icon_updates

Update icon docs.
Fixed code highlighting.
Merge pull request #531 from arthurevans/docs-500

Fixed code highlighting.
Merge pull request #522 from menelaos/tutorial-step1-fix

Fix paper-tabs documentation in tutorial
Merge branch 'master' of https://github.com/Polymer/docs