fixed group add button appearance in Chrome
The UserForm is now stayed active, when input focused. The app no remembers the last user
fixed bug with delimiters on the begin or end of storage index after deletion
Contacts validation and better form layout
moved scroll bar direct to contacts container for the case when there is more than 6 contacts
ensure we always have one contact (by hidding destroy button)
stopPropogation after editable trigger, to avoid filtering on group edit
ensure that person relates to the existed group
removed bug with corrupted regions setup array (caused by the first init) during app reinitialization
normal styling for blue form (contact creation). it is now rendered as child of body, like the gray one