Updated spanish translation

[ezegolub]

Redundant "minutos" removed from spanish translation

[ezegolub]

I don't know why travis failed, something to do with the docs AFAICT:

Warning, treated as error:
WARNING: 'default' html theme has been renamed to 'classic'. Please change your html_theme setting either to the new 'alabaster' default theme, or to 'classic' to keep using the old default.
ERROR: InvocationError: '/home/travis/build/brutasse/django-password-reset/.tox/docs/bin/sphinx-build -W -b html -d /home/travis/build/brutasse/django-password-reset/.tox/docs/tmp/doctrees . /home/travis/build/brutasse/django-password-reset/.tox/docs/tmp/html'
___________________________________ summary ____________________________________
ERROR:   docs: commands failed
The command "tox -e $TOXENV" exited with 1.

[brutasse]

Yeah, I'll fix the docs build. Could you update the .mo as well? Thanks!