Write the wallet less often

This should speed up synchronization / restoration of large wallets.
Wallets are written only when they switch to up_to_date state, or
when stop_threads() is called when closing the daemon, or when
a command line command finishes.

plugins/labels/labels.py

@@ -42,9 +42,9 @@ class LabelsPlugin(BasePlugin):
             self.set_nonce(wallet, nonce)
         return nonce
 
-    def set_nonce(self, wallet, nonce, force_write=True):
+    def set_nonce(self, wallet, nonce):
         self.print_error("set", wallet.basename(), "nonce to", nonce)
-        wallet.storage.put("wallet_nonce", nonce, force_write)
+        wallet.storage.put("wallet_nonce", nonce)
 
     @hook
     def set_label(self, wallet, item, label):
@@ -61,7 +61,7 @@ class LabelsPlugin(BasePlugin):
         t.setDaemon(True)
         t.start()
         # Caller will write the wallet
-        self.set_nonce(wallet, nonce + 1, force_write=False)
+        self.set_nonce(wallet, nonce + 1)
 
     def do_request(self, method, url = "/labels", is_batch=False, data=None):
         url = 'https://' + self.target_host + url
@@ -125,8 +125,8 @@ class LabelsPlugin(BasePlugin):
 
             self.print_error("received %d labels" % len(response))
             # do not write to disk because we're in a daemon thread
-            wallet.storage.put('labels', wallet.labels, False)
-            self.set_nonce(wallet, response["nonce"] + 1, False)
+            wallet.storage.put('labels', wallet.labels)
+            self.set_nonce(wallet, response["nonce"] + 1)
             self.on_pulled(wallet)
 
         except Exception as e:

plugins/trustedcoin/trustedcoin.py

@@ -305,8 +305,8 @@ class TrustedCoinPlugin(BasePlugin):
             return
 
         password = window.password_dialog()
-        wallet.storage.put('seed_version', wallet.seed_version, True)
-        wallet.storage.put('use_encryption', password is not None, True)
+        wallet.storage.put('seed_version', wallet.seed_version)
+        wallet.storage.put('use_encryption', password is not None)
 
         words = seed.split()
         n = len(words)/2