• rtrlib/lib/*: Change API and add lrtr_ prefix to prevent namespace conflicts with third party applications
• Change API for rtr_mgr_init and rtr_init to improve error handling
• Change preference order of finding cache servers, according to RFC 6810
• Improve behavior of cache server groups, switch to preferred group as soon as cache server is online again
• Improve error handling in rtr_mgr_init
• Improve timing behavior (expire interval, refresh interval etc.)
• Fix bug in rtr_mgr_close_all_groups_except_one to prevent deadlock
• Fix memory leaks, race condition, and buffer overflow/underflow
• Improve debugging and status values
• Update SSH transport to new LibSSH API