newuser page now checks if appuser already exists.
Added ability to change master password.
Added changepw to nav menu. Added suggestion to export data first.
In html_results, replaced glyphicon minus with width 2em empty span.
Try inline-block.
Try 1em.
Redid login page. Added getMasterPass and passwordValid functions.
Handle exception where trying to login with non-existant appuser.
Page changepw now asks for old password and new password confirmation.
html_changemasterpassword now form-horizontal.