change version in conf.py from 14.04 to 14.05
add upgrade notes for DAHDI 2.9.0
unhold_switchboard cti command renamed to resume_switchboard
tweak DAHDI 2.9.0 upgrade note
remove documentation on func key modification in RESTAPI 1.1

YAGNI. Editing a func key is too complex. Better to delete
and recreate it afterwards.
add 'not implemented yet' warning to func key creation in RESTAPI 1.1

YAGNI. will be implemented later, when neeeded
Fix fax-detection subroutine.
Firstly : enable faxdetection only if it is really needed (athat is, after
the test ...).
Secondly : disable faxdetection when no fax were detected. It is very
important if you want directmedia to work (if faxdetect=yes asterisk
doesn't remotely bridge peers).
switchboard can choose which incoming call to answer
do nothing when a talking switchboard answers another
Merge branch '4898-resume'
merge the two 14.05 section
simplify upgrade notes
Merge branch '4951_user_func_key'
fix "Pressing F6 to select the incomming call frame"
Merge branch '4218-switchboard-choose-incoming-call'
Update Polycom devices
update info on building xivo-libsccp
remove notes about module reload chan_sccp and sccp resync

No more needed with the latest version of xivo-libsccp.
add upgrade notes for SCCP
Merge branch 'sccp-next2'