Signin view should have argument for inactive url redirect

[meomap]

After login successfully, there's no way to specify redirect url if account is disabled. It's hardcoded with url resolved from name userena_disabled and arguments username.

What if application doesn't want to include username in url and just return a static template. All the usage of redirect in views have option for that except this usecase

[coveralls]

Coverage increased (+0.007%) to 95.588% when pulling 6d68dd8 on meomap:signin-with-inactive-url-parameter into 7dfb3d5 on bread-and-pepper:master.