Python 3.7 fix (#82)

* Replace with Python 3.7 compatible syntax

* Bump version to 2.1.1

octoapp/notificationutils.py

@@ -78,7 +78,11 @@ def processLine(line):
 
         # Do not read by line! We need to keep track of \r and \n because they are part of the filePos
         # later used. If read by line we do not know if \r\n or \n was used
-        while chunk := response.read(4096):
+        while True:
+            chunk = response.read(4096)
+            if not chunk:
+                break
+
             buffer += chunk if type(chunk) == str else chunk.decode('utf-8')
             while '\n' in buffer:
                 line, buffer = buffer.split('\n', 1)

setup.py

@@ -22,7 +22,7 @@
 
 # The plugin's version. Can be overwritten within OctoPrint's internal data via __plugin_version__ in the plugin module
 # Note that this is also parsed by the moonraker module to pull the version, so the string and format must remain the same!
-plugin_version = "2.1.0"
+plugin_version = "2.1.1"
 
 # The plugin's description. Can be overwritten within OctoPrint's internal data via __plugin_description__ in the plugin
 # module