Comment 7 for bug 1172341

I've added a selftest that verifies that rpm, dpkg, and opkg all do the right thing with ~ in version comparisons, and a recipe that uses ~ builds correctly:

$ find . -name test-version[-_]1*
./deb/corei7-64/test-version_1.0~beta-r0_amd64.deb
./ipk/corei7-64/test-version_1.0~beta-r0_corei7-64.ipk
./rpm/corei7_64/test-version-1.0~beta-r0.corei7_64.rpm