E-mail content updates for consistent formatting and use of the URL tool.

The previous URL reference in the welcome mail was wrong.
Merge branch 'develop' of github.com:amcgregor/adam-auth into develop
Added explicit dependency links and Vagrant configuration.
Modified username field of register page to use new validation.js, and modified validation.js to be more flexible.

Signed-off-by: Tyler O'Meara <Tyler@TylerOMeara.com>
Added entropy function to /account and made validation.js more extensible.

Signed-off-by: Tyler O'Meara <Tyler@TylerOMeara.com>
Fixed entropy function server side, inlcuding adding a new dependency for python-zxcvbn. Also updated the password field in the signup form to use the new validation.js.

Signed-off-by: Tyler O'Meara <Tyler@TylerOMeara.com>
Actually added the entropy server side fix this time and updated the rest of the signup page to use the new validation.js

Signed-off-by: Tyler O'Meara <Tyler@TylerOMeara.com>
Added server-side password entropy requirements for new accounts, and consolidated signup.html to make it more readable.

Signed-off-by: Tyler O'Meara <Tyler@TylerOMeara.com>