Gelencsér Szabolcs / cloud

also fix add a hash function to check whether we should
update the activity feed

Closes #230

VM resources sliders

 new sliders from VM detail
 new sliders from VM customized create
  configurable max node ram
 server side max node ram check
 new sliders for template edit/create

https://miskolc.cloud.bme.hu:18525/dashboard/

Closes #183
Closes #137

- some leftover comment/hr
- also those margins made the boxes on index jump ...

without the load the sliders weren't set, but clicking on customize
would load the js again and that would attach the click event twice

fix typo
handle NoStoreException (this shouldn't really happen)

* renaming to __ prevent makemessages catching it
* non-lazy version would never work here

Feature Store

  Add SMB and Quota parameter
   Handle private_keys for sshfs and pair it with django_sshkey (Is the hook ready?)
 Web interface
 Show user scp/sftp info
 Fix tests and it's complete.