[BW]: [NIP] Mail editor changes to support Drafts folder storage and better application ergonomy.
[BW]: [NIP] Further mail editor related work: Implemented update command ui for save, send buttons, optional mail fields management.
[BW]: [NIP] Further mail editor development: implemented window title update, text adjust & formatting slot connections.
Merge branch 'master' of https://github.com/InvictusInnovations/keyhotee

Resolved conflicts:
	AddressBook/AddressBookModel.cpp
	AddressBook/Contact.cpp
	AddressBook/ContactView.cpp
	KeyhoteeMainWindow.cpp
	Mail/MailViewer.cpp
[BW]: [Ign] Old mail editor enabled back.