Backport the ability to receive documents via email

Created by: rosarior

Imported comments:

By rosarior on 2014-10-20 06:38:14 UTC

Started: https://github.com/mayan-edms/mayan-edms/commit/59eb6202fe7158bb7e01a097399035292d2b9a4d

By rosarior on 2014-10-21 01:59:56 UTC

Complete and tested: https://github.com/mayan-edms/mayan-edms/commit/b0c76eab42034a6e4920eeb74ca5a97d0c3db33c