Fix asset path error.
Merge branch '8.x-1.x' into asset_path
Attach library instead of files.
Fix typo in assertTokens().
Merge branch '8.x-1.x' into asset_path
Update the PR: replace _drupal_add_library by #attached.
Merge branch '8.x-1.x' into typo
Merge pull request #7 from tienvx/asset_path

Fix asset path error.
Merge pull request #9 from tienvx/typo

Fix typo in assertTokens().