Fix up the URLs mapping to soc.views.user.profile.edit() and make the site base template (mostly a mock-up) point to /user/profile instead of the old /usr/linkname/profile from the static mock-up.

Move soc.views.user.profile.profile() to soc.views.user.profile.edit().

Flesh out the user/roles placeholders a little bit more.

Created response helper respond() function that is used to generate base templates and it's child templates (handles sign in/out links, user name etc). Updated User model helper text. Added basic user profile view (not finished yet). Added css entries for buttons and added buttons background. Added /user/profile and /user/profile/linkname support in urls.py.