Fixes nasa#72, upgrade PyQt4 to PyQt5

Incorporated dmknutsen fixes from nasa#83. Also fixes nasa#71

Subsystems/tlmGUI/EventMessage.py

@@ -80,6 +80,13 @@ def __init__(self, aid):
         self.setupUi(self)
         self.appId = aid
 
+        self.eventTypes = {
+            1: "DEBUG",
+            2: "INFORMATION",
+            3: "ERROR",
+            4: "CRITICAL"
+        }
+
     def initEMTlmReceiver(self, subscr):
         self.setWindowTitle(f'{pageTitle} for: {subscr}')
         self.thread = EMTlmReceiver(subscr, self.appId)
@@ -101,26 +108,14 @@ def processPendingDatagrams(self, datagram):
         # Get App Name, Event ID, Type and Event Text!
         #
         appName = datagram[16:36].decode('utf-8', 'ignore')
-        EventID = int.from_bytes(datagram[36:38], byteorder='little')
-        EventType = int.from_bytes(datagram[38:40], byteorder='little')
+        eventID = int.from_bytes(datagram[36:38], byteorder='little')
+        eventType = int.from_bytes(datagram[38:40], byteorder='little')
         eventText = datagram[48:].decode('utf-8', 'ignore')
-        EventID = str(EventID)
-        EventType = str(EventType)
         appName = appName.split("\0")[0]
         eventText = eventText.split("\0")[0]
+        eventTypeStr = self.eventTypes.get(eventType, "Invalid Event Type")
 
-        if (EventType == "1"):
-            EventType = "DEBUG"
-        elif (EventType == "2"):
-            EventType = "INFORMATION"
-        elif (EventType == "3"):
-            EventType = "ERROR"
-        elif (EventType == "4"):
-            EventType = "CRITICAL"
-        else:
-            EventType = "Invalid Event Type"
-
-        eventString = f"EVENT --> {appName} - {EventType} Event ID: {EventID}: {eventText}"
+        eventString = f"EVENT --> {appName}-{eventTypeStr} Event ID: {eventID} : {eventText}"
         self.eventOutput.appendPlainText(eventString)
 
     ## Reimplements closeEvent