Added bootstrap_gallery module
Revert "Added bootstrap_gallery module"

This reverts commit b5853a7f3efdc0be8ab2ad5062ae82765b8be28f.
Revert "Verfied addition of initial photo_gallery feature"

This reverts commit b139d6637bfe1c291ab6e6558f5780ee3a8f1442.
Revert "Added bulk_media_upload module"

This reverts commit 13743a1115895ad7a6bf6c54e7a7db7e64e62d49.