Remove all settings which are not implemented (#73)

* Remove all settings which are not implemented

* Add support for migrating config files from version 0 -> 1

Add basic unittests for the config file migration

* Update the config file used by travis

* Fix typos in console log messages

* Improve the comment

* Fix type of limit

* Set informed consent to true in the travis config

testdata/testing-config.json

@@ -1,59 +1,15 @@
 {
   "_": "This is your OONI Probe config file. See https://ooni.io/help/probe-cli for help",
-  "_version": 0,
+  "_version": 1,
   "_informed_consent": true,
-  "_is_beta": true,
-  "auto_update": true,
   "sharing": {
-    "include_ip": false,
+    "include_ip": true,
     "include_asn": true,
     "include_country": true,
-    "include_gps": true,
     "upload_results": true
   },
-  "notifications": {
-    "enabled": true,
-    "notify_on_test_completion": true,
-    "notify_on_news": false
-  },
-  "automated_testing": {
-    "enabled": false,
-    "enabled_tests": [
-      "web-connectivity",
-      "facebook-messenger",
-      "whatsapp",
-      "telegram",
-      "dash",
-      "ndt",
-      "http-invalid-request-line",
-      "http-header-field-manipulation"
-    ],
-    "monthly_allowance": "300MB"
-  },
-  "test_settings": {
-    "websites": {
-      "enabled_categories": [],
-      "limit": 10
-    },
-    "instant_messaging": {
-      "enabled_tests": [
-        "facebook-messenger",
-        "whatsapp",
-        "telegram"
-      ]
-    },
-    "performance": {
-      "ndt_server": "auto",
-      "ndt_server_port": "auto",
-      "dash_server": "auto",
-      "dash_server_port": "auto"
-    },
-    "middlebox": {
-      "enabled_tests": [
-        "http-invalid-request-line",
-        "http-header-field-manipulation"
-      ]
-    }
+  "nettests": {
+    "websites_url_limit": 10
   },
   "advanced": {
     "use_domain_fronting": false,