Fix version numbers in documentation, require Python 2.6
Fix version numbers in documentation, require Python 2.6

openmeteo/enhydris,aptiko/enhydris,kickapoo/enhydris,openmeteo/enhydris,kickapoo/enhydris,aptiko/enhydris,kickapoo/enhydris,ellak-monades-aristeias/enhydris,ellak-monades-aristeias/enhydris,openmeteo/enhydris,ellak-monades-aristeias/enhydris,aptiko/enhydris