Assign to every participant a sequence number. The first time a participant is...

Assign to every participant a sequence number. The first time a participant is added to a conference, its sequence number is 0 and it is incremented by one every time the conference is updated. The sequence number is sent to every participant as a parameter of the ics field ATTENDEE

Add linphone_conference_scheduler_cancel_conference to enable apps to cancel a conference for a given conference info

Add test to verify edition of conference while it is active

Fix description of compile features

CMakeLists.txt

@@ -89,7 +89,7 @@ if(NOT LINPHONESDK_PACKAGER OR LINPHONESDK_PACKAGER STREQUAL "OFF")
 	include(FeatureSummary)
 	feature_summary(FILENAME "${CMAKE_BINARY_DIR}/enabled_features.txt" WHAT ENABLED_FEATURES DESCRIPTION "Enabled features:")
 	feature_summary(WHAT ENABLED_FEATURES DESCRIPTION "Enabled features:")
-	feature_summary(FILENAME "${CMAKE_BINARY_DIR}/disabled_features.txt" WHAT ENABLED_FEATURES DESCRIPTION "Enabled features:")
+	feature_summary(FILENAME "${CMAKE_BINARY_DIR}/disabled_features.txt" WHAT DISABLED_FEATURES DESCRIPTION "Disabled features:")
 	feature_summary(WHAT DISABLED_FEATURES DESCRIPTION "Disabled features:")
 	
 	if (ENABLE_SANITIZER)

liblinphone @ 3a8b1b37

-Subproject commit 66bf8ee5f03e16da0104a1c1b0ce97f3eb427ea1
+Subproject commit 3a8b1b37fb7a4de75dc3f660462509be1fa3377f