- Remove used deprecated functions on video_definition and add missing linphone_core_set_preview_video_definition_by_name
- Add an API to get recommended video definitions to make a difference between what definitions Linphone support, and what definitions that are suitable for a widest set of hardware for all video codec implementations in order to excludes some very high definition formats that are unlikely to work unless specific hardware or codecs are used. Directory API : allow to set data, config and download paths from factory. Keep fallback on old computation if paths are not set by the application. Update log file only if enabled to avoid unwanted file creation.
(backport from release/5.1)