browser (photos): albums can now be deleted: when albums are deleted, there are removed from list of interest, and all photos inside are also deleted. Doesn't check permissions before deletion yet, so the button is always present even when it may fail.

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"