Merge pull request #95 from github/add-customelements-manifest

add customelements manifest

Merge pull request #94 from github/upgrade-to-new-web-component-stand…

…ards

remove global define

Merge pull request #93 from github/upgrade-to-new-web-component-stand…

…ards

upgrade to new web component standards

Merge pull request #92 from github/refetch

add refetch API

Merge pull request #87 from github/throw-errors-rather-than-resolving…

…-them

throw errors rather than resolving them

Merge pull request #79 from github/check-if-network-request-is-alread…

…y-in-flight

Check if there's a network request already in flight

6.0.0

5.3.2

5.3.1

5.3.0