change menu, update style, update index

Menu was changed to use id rather than class, and to take advantage of
an unordered list.
The style was trimmed partially to remove unneeded items.  The menu was
centered, and the menu color was changed.
The index was sorted in ascending order, and this was changed.
add default root user, fix signedness, add passwords

Root user created by default, will be only user capable of creating
other user accounts.
Unsigned integers now stated explicitly.
Passwords created in a username-email-password-joindate hash.
Merge branch 'master' of github.com:Taywee/happy-without
update db setup