document function key destinations of type service

currently exclusively for voicemail services
document duplicate function key limitation
update agid log file
update ctid options
update provd log file
update sysconfd log file
update dxtora log file
fix grammar
bump version to 14.12
Merge branch 'regroup-logging'
add logfile changes in upgrade notes
 sed -i 's/xivo.fr/xivo.io/g'
Add user case Association ULE for rest api
Add Relationships between the components of Xivo
add precision on BOM in phonebook import file
more precision on the BOM
replace references to deprecated line-extension-association with correct version
list all service func keys available in REST API 1.1
add definition of daemon
remove obsolete information about the cti server
Merge branch 'sed-xivo-io'