• Fix bug in prefix origin AS validation caused by LPFST, which lead to
  incrrect validation results in corner caes, and change prefix storage
  structure to Trie
• Fix memory leaks in lpfst_get_children
• Fix memory leak in rtr_mgr_get_spki
• Fix memory leak in rtr_mgr_init
• Fix memory leak in pfx_table_append_elem
• Fix memory leak in pfx_table_del_elem
• Fix byte order for encapsulated error PDUs
• Fix error PDU handling, do not send encapsulated PDUs on internal errors
• Improve testing:
  • add extensive unit tests based on the Cmocka framework
  • add runtime tests, e.g. live validation of RIPE RIS BGP beacons
• Improve overall coding style and documentation
• Add static code analysis (cppcheck, codecov.io) to Travis CI config
• Add backward compatibility for libssh 0.5.0 and Ubuntu 12.04 LTS
• Update Debian package build files