Please give back theano on all

["Rebecca N. Palmer" <rebecca_palmer@zoho.com>]

The arch:all part of theano FTBFS with sphinx 1.7.5-1
(#901662).  This has now been fixed in sphinx.

  dw theano_1.0.2+dfsg-1 . all . -m 'sphinx-common (>= 1.7.5-2)'

Thanks.