pages (photos/new): fix permissions: "/albums" path is created with `open` access model if it doesn't already exist. The album itself is created as a sub-directory with a `whitelist` access model, if it doesn't already exist (otherwise the album is just added in list of interests).

import os.path

version_file = os.path.join(os.path.dirname(__file__), "VERSION")
try:
    with open(version_file) as f:
        __version__ = f.read().strip()
except NotImplementedError:
    # pyjamas workaround
    __version__ = "0.7.0D"