Fix default_path context processor.

Context processors must return a dictionary-like object. For
logged-in users, the context processor returned None by default.
This returns empty dictionary.
(#248) Add ChangePasswordView component.

This translates the change password dropdown to React and hooks it
up to the API. A followup diff will add validation and closing the
dropdown.

Closes #259.
Remove 'www' prefix from the new URLs.

This removes the 'www' namespace from the React app, making it the
default. The app is close to readiness, and all that's required is
polish.

Test Plan: Load /, verify it redirects to /login. Ensure that
/login, /register, /password, and /advisor/profile work as expected.
First commit
npm changes
node issues
view based authorization setup
"
basic setup
adds in topbar requrirement that was accidentally deleted
fixes some errors with merge conflicts
adds in advisorview as a wrapper view that checks authorizations
fixes small errors introduced throughout code
fixes errors in parent children structure
semicolons
style nits and fixes errors
Changes rrouter Version
adds functionality