Changed info log level to debug log level for debug logs (#197)

* Changed info log level to debug log level for debug logs

* Update token_request.py

Per request of markmabe: #197 (comment)

adal/token_request.py

@@ -263,7 +263,7 @@ def _parse_wstrust_version_from_federation_active_authurl(federation_active_auth
         return WSTrustVersion.UNDEFINED
 
     def get_token_with_username_password(self, username, password):
-        self._log.info("Acquiring token with username password.")
+        self._log.debug("Acquiring token with username password.")
         self._user_id = username
         try:
             token = self._find_token_from_cache()
@@ -296,7 +296,7 @@ def get_token_with_username_password(self, username, password):
         return token
 
     def get_token_with_client_credentials(self, client_secret):
-        self._log.info("Getting token with client credentials.")
+        self._log.debug("Getting token with client credentials.")
         try:
             token = self._find_token_from_cache()
             if token:

adal/util.py

@@ -74,7 +74,7 @@ def create_request_options(self, *options):
 
 def log_return_correlation_id(log, operation_message, response):
     if response and response.headers and response.headers.get('client-request-id'):
-        log.info("{} Server returned this correlation_id: {}".format(
+        log.debug("{} Server returned this correlation_id: {}".format(
             operation_message, 
             response.headers['client-request-id']))