changed address versions for peershares
display the peercoin address in the address book
new RPC command to get peercoin addresses
new function to call an RPC command on peercoin
new RPC command to export keys to peercoin
added menu item to export peercoin keys
upcase on Peershares and Peercoin
Merge pull request #28 from Peershares/0.2.6

0.2.6 This is all the phase two code changes