moved some frontends/* to new backends/; backends are threads running in background, no frontend

lib/backends/https.py

@@ -0,0 +1,13 @@
+"""
+A HTTPS backend to the current Linspector instance.
+
+A Webserver listening for requests to give information about the internal state of linspector.
+(maybe providing a JSON API to the instance too...)
+"""
+
+from lib.backends.backend import Backend
+
+
+class HttpsBackend(Backend):
+    def __init__(self, **kwargs):
+        return