Add alert if user attempts to create a wiki page with forward slashes in the name.
Remove console.log statement
Begin endpoints for glacier metadata.

Tests to follow.
Test metadata logic in models and views.
Merge branch 'develop' of https://github.com/CenterForOpenScience/osf.io into feature/osf-storage-glacier
Merge branch 'feature/osf-storage-glacier' into develop
Make error message color and position consistent with rest of site
Merge branch 'feature/wiki-naming' into develop
Merge branch 'hotfix/0.21.14' into develop
Remove unused functions h/t @sloria
Remove unused import and some triangles
Merge branch 'feature/s3-keys' into develop
Update changelog
Update changelog

[skip ci]
Merge branch 'master' into release/0.21.17
Update changelog
Merge branch 'release/0.21.17'