Add inferred tag name
Move inferred tag-name to its own section.
More tweaks to "adding properties and methods" section.
Fix typo
Updated to address comments.
Fix typo
Update to reflect new support for inferred tag name.
Merge branch 'master' of https://github.com/Polymer/docs into inferred-2
Updated based on comments. Clarified prototype chain assembly.
Remove repetitive sentence.
Merge pull request #617 from arthurevans/inferred-2

Document inferred name in Polymer() call
Merge branch 'master' of https://github.com/Polymer/docs into docs-618

Conflicts:
	docs/polymer/polymer.md