- core: fix reconnect after manual disconnect (rh #541314)
    - core: fix various segfaults during registration
    - core: fix probing of various modems on big-endian architectures (ie PPC)
    - core: implement modem states to avoid duplicate operations
    - hso: fix authentication for Icera-based devices like iCON 505
    - zte: use correct port for new devices
    - nozomi: fix detection