Merge remote-tracking branch 'origin/master' into book-metadata
remove hardcoded isBasedOnUrl from opf
Merge remote-tracking branch 'origin/master' into book-metadata
add uid to file content on opf generation
pop metadata modal when creating a new bookshelf
split nav metadata into head and body components
remove console.logs in the opf
Merge pull request #166 from oerpub/book-metadata

updates to book metadata editing