Added encryptwallet call to bitrpc.py

This was the only call requiring password input which was still missing. Much useful to avoid leaving a plain text passphrase in the shell log.

contrib/bitrpc/bitrpc.py

@@ -23,6 +23,18 @@ if cmd == "backupwallet":
     except:
         print "\n---An error occurred---\n"
         
+elif cmd == "encryptwallet":
+    try:
+        pwd = getpass.getpass(prompt="Enter passphrase: ")
+        pwd2 = getpass.getpass(prompt="Repeat passphrase: ")
+        if pwd == pwd2:
+            access.encryptwallet(pwd)
+            print "\n---Wallet encrypted. Server stopping, restart to run with encrypted wallet---\n"
+        else:
+            print "\n---Passphrases do not match---\n"
+    except:
+        print "\n---An error occurred---\n"
+
 elif cmd == "getaccount":
     try:
         addr = raw_input("Enter a Bitcoin address: ")