dovecot master password configuration
generate master password to be used from SOGo to access imap
add and complete doc to methods
add dovecot-sqlite dependency to mail module
mkdir -p of samba's private mapistore dir
Merge branch 'master' into jgarcia/set-masterpwd-for-dovecot
change name of master password file
Merge branch 'master' into jgarcia/set-masterpwd-for-dovecot

Conflicts:
	main/mail/ChangeLog
Merge branch 'jgarcia/set-masterpwd-for-dovecot'