v2.3.4

Features

• add amp-boilerplate as boolean attribute (resolves: #530) (#531) (bb45319)

Bug Fixes

• also set ssrAppId for first Vue app when ssrAttribute exists (#563) (4664df2)
• auto install plugin in browser (32fdb20)
• improve ssr detection when 1st metaInfo component isnt root (a41b9a7)
• support falsy values in eg body attributes (fix: #535) (1ef4108)