server: pages redirection: when using a redirection dict, a new "page" key can be used to redirect to a named page. "args" can be added to specified named arguments to set (will be put in request.args, in addition to existing ones). The redirection is done dynamically, during the request workflow.

try:
    from common.constants import Const as C
except ImportError:
    pass # import doesn't work at this stage with pyjamas
else:
    __version__ = C.APP_VERSION