Revert "Add -Wno-sizeof-pointer-memaccess gcc option."

This reverts commit 8067da0891e0fc6a2e55853a103ff2c95fa1f59b.
Adding a patch from fedora instead of -Wno-sizeof-pointer-memaccess.
Update manpages.

Changes taken from Ubuntu, thanks!
Better startup message if not in a vm.

Patch taken from Ubuntu (LP: #1289564).
Add patch for Debian 7.X os recognition.

Official code only handles 7.0 and 7.1.
Also maybe 8.x, needs to be tested if it breaks stuff in vmware.
Refreshing patches.
Make patches/kuid_t-kgid_t-fix-for-3.12 compatible with older kernels.

Thanks to Norbert Lange for the idea.
PIC handling in configure is broken.

Add --with-pic as configure option and -fPIC to CFLAGS.
Rise the number of supported NICs.

There is an arbitrary constant declared limiting the amount of NICs that
it supports. I have bumped the limit from 16 to 64 to make this
toolset functional for larger setups.

Closes: #756808
Updating changelog.