[services] UserStore: add list() method to obtain all accounts
[test] UserStore: add test for list() method
[ctrl+route] Accounts: Add listAccounts and route

Route to /api/user/list
[test] AccountsCtrl: test listAccounts method
[views+js] add adminAccounts for inspecting registered user
[ctrl,views,routes] +adminAccounts @ /dashboard/accounts
[views] adminAccounts: Also show uuid + number of accounts
[js] s/adminAccountsViewModel/AdminAccountsViewModel

This should make the naming police happy ;-)
Merge pull request #148 from asobolev/andrey

Made permissions accessible for admins and conference owners

LGTM. Closes issue #139
Merge pull request #149 from gicmo/adminUser

Add API to retrieve all accounts and a UI for the site admin
Fixes #145: some client side abstract validation.
Merge pull request #151 from stoewer/master

Client side abstract validation.

Tested locally!