in wich i fix more random things

* add more attributes to user params permit in admin
* shelly cloud hint color in mobile sidebar
* team page on mobile now is not too small to read
added password email address, fixes #497
fixed layout of user edit, fixes #491
add tooltip to category color indicator, fixes #481
add tooltip to new suggestion path, fixes #480
Merge pull request #502 from hacken-in/480-add-tooltip-for-new-suggestion

add tooltip to new suggestion path, fixes #480
Merge pull request #501 from hacken-in/481-add-title-to-color-indicator

add tooltip to category color indicator, fixes #481
Merge pull request #500 from hacken-in/491-user-edit

fixed layout of user edit, fixes #491
Merge pull request #498 from hacken-in/more-mobile

in wich i fix more random things
Merge pull request #499 from hacken-in/497-password-email-address

added password email address, fixes #497
Tiny bootstrap helper to get new users started with hacken.in #394

This (not so tiny) change will move everything Vagrant-related to a
separate folder /vagrant and bootstrap a smaller Gemset from there, so
users without PostgresSQL header files can also give hacken.in a try. :D
Merge pull request #464 from hacken-in/394-bootstrap-script

Tiny bootstrap helper to get new users started with hacken.in #394
Use ssl connections for Gravatars (fixes #504)