Merge pull request #85 from GyeongHoKim/feature/error-handle

fix #83
Previously, Yellowstone would throw with error if the RTSP connection failed when first Connecting to the RTSP server
With this change, Yellowstone now emits an "error" event if the RTSP connection fails after the initial connection.
Roger's ToDo - add into the TLS code

Author: RogerHardiman

.gitignore

@@ -29,3 +29,7 @@ node_modules
 # Debug files
 debug
 .DS_Store
+
+# IDE settings
+.idea
+.vscode