Routes for Session
New Session controller; corrected controller#action for /signin route.
Login form completed.
Adding Flash module for displaying alerts.
Named route for /signup url
Replaced hardcoded /signup url
create method por Session controller
Adding all login logic: controller and helper methods.
Relocated Flash module
Relocated create_remember_token method
Corrected current_user method
If branching for top navbar
A few methods fixes; additon of remember_token field
Sigin in almost working... need to work out flash failure.
Flash issue workaround - documented under Issue #2
Correction of user#show view template name
Small sign in fixes
Merge branch 'signin' into development