add range argument for dependencies
adapt new release layout for polymer and webcomponentjs
make sure the build polymer.html exists
add core-scroll-threshold to core.json
replace web-animations-js with  web-animations-next
skip tagging web-component-tester
Add -a flag to tag and release "all" polymer components

Remove build flag, we always build now
No need for range and version flags when pushing tags, just pulling
remove old scripts