Merge #1528: No lock check on readonly

dafc180 no lock check on readonly (roshii)

Pull request description:

  Do not check wallet lock file for read-only
  Fixes #1514 (comment)

ACKs for top commit:
  AdamISZ:
    tACK dafc180 , merging.

Tree-SHA512: 75497710deae573be65b6b8ab9b8ec9957d22f242716471023c33ab7821aaa58797bb5df43b7997d238834c2b3dc8afc27cfa68424bae6826bb23a96b1c2f158

jmclient/jmclient/wallet_utils.py

@@ -1532,8 +1532,9 @@ def open_wallet(path, ask_for_password=True, password=None, read_only=False,
     if ask_for_password and Storage.is_encrypted_storage_file(path):
         while True:
             try:
-                # Verify lock status before trying to open wallet.
-                Storage.verify_lock(path)
+                # Verify lock status if not read only before trying to open wallet.
+                if not read_only:
+                    Storage.verify_lock(path)
                 # do not try empty password, assume unencrypted on empty password
                 pwd = get_password("Enter passphrase to decrypt wallet: ") or None
                 storage = Storage(path, password=pwd, read_only=read_only)