v7.0.0

Features

• do not depend on babel-polyfill (db11d56), closes #36
• build: add stats flag (8046edb)
• release: add --no-changelog option (ced51fe)
• release: add changelog generation (44896e4)
• release: add github release (564e1d5)

BREAKING CHANGES

• This can break browser builds and tests and needs to be tested
  carefully when upgrading.