yt-search-video: invoke search only if query is not empty and is a
string
add x-tag (demo) repo
remove x-tag (to move it)
x-tag helper and submodule
correct folding and change tracking.
various tweaks for more control of chartjs
animation: different visuals
animation: match the colors to sandbox
clear video when search input is blank
use a more descriptive id to prevent style leak in polyfill
toolkit -> polymer
add clearVideo to yt-video and make yt-search-video to use it when query
value is invalid
pantry-elements -> more-elements
fix attributions
Merge pull request #4 from Polymer/master

5/14 master -> stable