Trytond is an application, and only python libraries should have
the "python-" prefix.
* gnu/packages/tryton.scm (python-trytond): Rename to...
(trytond): ...this. [synopsis] Rephrase.
(python-trytond): Redefine as a deprecated alias.
(python-trytond-account, python-trytond-account-invoice,
python-trytond-account-invoice-stock, python-trytond-account-product,
python-trytond-analytic-account, python-trytond-company,
python-trytond-country, python-trytond-currency, python-trytond-party,
python-trytond-product, python-trytond-purchase,
python-trytond-purchase-request python-trytond-stock,
python-trytond-stock-lot, python-trytond-stock-supply)[propagated-inputs]:
Rename python-trytond to trytond.