Migrate ip4r to iprange
Migrate ip4r to iprange

Remove ugly ip4r kludge and replace with the general iprange operator to
support both fast IPv4 and IPv6 searches.

Fixes #6.

SpriteLink/NIPAP,plajjan/NIPAP,SoundGoof/NIPAP,SoundGoof/NIPAP,bbaja42/NIPAP,fredsod/NIPAP,fredsod/NIPAP,ettrig/NIPAP,SoundGoof/NIPAP,garberg/NIPAP,plajjan/NIPAP,SpriteLink/NIPAP,fredsod/NIPAP,ettrig/NIPAP,SoundGoof/NIPAP,bbaja42/NIPAP,ettrig/NIPAP,bbaja42/NIPAP,SpriteLink/NIPAP,fredsod/NIPAP,SoundGoof/NIPAP,bbaja42/NIPAP,ettrig/NIPAP,fredsod/NIPAP,bbaja42/NIPAP,SoundGoof/NIPAP,SpriteLink/NIPAP,garberg/NIPAP,garberg/NIPAP,plajjan/NIPAP,bbaja42/NIPAP,plajjan/NIPAP,ettrig/NIPAP,SpriteLink/NIPAP,garberg/NIPAP,SpriteLink/NIPAP,fredsod/NIPAP,plajjan/NIPAP,garberg/NIPAP,ettrig/NIPAP,plajjan/NIPAP,garberg/NIPAP