Revert "Remove -beta suffix on release-0.6 branch"
Revert "Remove -beta suffix on release-0.6 branch"

This reverts commit 28c9522802cc5d51d82ca66608789aa452584d03.

peercoin/peercoin,peercoin/peercoin,DigitalPandacoin/pandacoin,ppcoin/ppcoin,DigitalPandacoin/pandacoin,DigitalPandacoin/pandacoin,peercoin/peercoin,peercoin/peercoin,ppcoin/ppcoin,peercoin/peercoin,peercoin/peercoin,ppcoin/ppcoin,ppcoin/ppcoin,DigitalPandacoin/pandacoin,DigitalPandacoin/pandacoin,DigitalPandacoin/pandacoin