Explain how to make core-header-panel appear
Merge pull request #5 from robdodson/layout-docs

Explain how to make core-header-panel appear
fixes #7
don't remove tall class if the scrollHeight is less core-header-panel's
height
add doc for using `fit` to fit to the main area
Document scroller property
Merge pull request #9 from cletusw/documentScroller

Document scroller property
audit license headers
fixes #10, #11
remove whitespace
apply overflow property when it is needed
change to use addEventListener instead of declarative event binding for
scroll event to avoid unnecessary Platform.flush calls
update api docs for scroll event
config may not be set
Merge pull request #16 from Polymer/fixmissingconfig

config may not be set
/s/-appbar/-toolbar/