Some refinements to share details ACL form

 * ACLs are always treated as arrays
 * Fixed some not working code
 * Re-added custom inputs
Computer listing

 * Also changed shares and machines sidebars so they can be different
   upper menu options.
Computer listing

 * Also changed shares and machines sidebars so they can be different
   upper menu options.
Samba4 machines edition
Machines can be now deleted
After component edition, we redirect the user to the component list

 * Also removed developing var_dump
Added delete share feature
Removed shares backup option from the shares list
Merge branch 'mjulian/frontend' of github.com:Zentyal/mmc into mjulian/frontend
Merge branch 'mjulian/frontend' into samba4-poc

Conflicts:
	mds/web/modules/samba4/includes/domaincontroller-xmlrpc.inc.php
Added new frontend files to makefile