send field name (username) to auth engine on custom auth
remove google analytics

came standard template that we are using
remove google analytics

came standard template that we are using
set uid value, used on bottle-auth
change field name on check auth, used now uid
set uid on login
uid is username, named used on auth lib
if fail login redirect to uri "/"
backend check via decorator
Merge pull request #146 from avelino/master

Fix bug bottle-auth