Fixed error when user fails to enter correct password

Pappy would raise exceptions and continued project in clear-text
when the user failed to enter the correct decryption password.

Added a boolean status variable to config `crypt_success` that
gets set to true when project decrypts correctly, otherwise it
is set to false.

pappyproxy/config.py

@@ -170,6 +170,7 @@ class PappyConfig(object):
         self.crypt_dir = 'crypt'
         self.crypt_file = 'project.crypt'
         self.crypt_session = False
+        self.crypt_success = False
         self.salt_file = 'project.salt'
     
     def get_default_config(self):

pappyproxy/crypto.py

@@ -90,6 +90,7 @@ class Crypto(object):
                     # Quit pappy if user doesn't retry
                     # or if all retries exhuasted
                     if not self.confirm_password_retry() or retries <= 0:
+                        self.config.crypt_success = False
                         return False
                     else:
                         self.password = None
@@ -106,6 +107,7 @@ class Crypto(object):
             self.delete_crypt_files()
 
             os.chdir(self.config.crypt_dir)
+            self.config.crypt_success = True
             return True
 
     def confirm_password_retry(self):

pappyproxy/pappy.py

@@ -72,9 +72,11 @@ class PappySession(object):
 
         if self.config.crypt_session:
             self.decrypt()
-            self.config.load_from_file('./config.json')
-            self.config.global_load_from_file()
-            self.delete_data_on_quit = False
+
+            if self.config.crypt_success:
+                self.config.load_from_file('./config.json')
+                self.config.global_load_from_file()
+                self.delete_data_on_quit = False
         
         # If the data file doesn't exist, create it with restricted permissions
         if not os.path.isfile(self.config.datafile):