update if user already exists and small fixes
update if user already exists and small fixes

Adds an update option if, on insert, that key (ldap user) already exists.

Small fixes:
Adds lca.js so that someone can log out while viewing the page.
Adds flush() commands after steps so that user gets immediate feedback.

jamesryanalexander/lca-tools,jamesryanalexander/lca-tools