- updated to 1.8.1

- updated to 1.8.1
- removed obsolete lt,gcc4 patches
- added netfilter patch, ensure that NAT is detected after running configure
- added include patch (missing <sys/stat.h> for mkfifo())
- added link patch instead of bogus skip_post_check_so
- added info patch (to unify direntry)

Changed files:
    commoncpp2-gcc4.patch -> 1.2
    commoncpp2-include.patch -> 1.1
    commoncpp2-info.patch -> 1.1
    commoncpp2-link.patch -> 1.1
    commoncpp2-lt.patch -> 1.5
    commoncpp2-netfilter.patch -> 1.1
    commoncpp2.spec -> 1.30