Added Try Catch around server job spawn. This fixes bug where crafty would not gracefully handle if java did not exist.

app/classes/shared/server.py

@@ -137,7 +137,11 @@ class Server:
             logger.info("Linux Detected")
 
         logger.info("Starting server in {p} with command: {c}".format(p=self.server_path, c=self.server_command))
+        try:
             self.process = pexpect.spawn(self.server_command, cwd=self.server_path, timeout=None, encoding=None)
+        except Exception as ex:
+            logger.error("Server {} failed to start with error code: {}".format(self.name, ex))
+            return False
         self.is_crashed = False
 
         ts = time.time()