Merge branch '832-network-manager' into 'master'

...n/java/org/briarproject/bramble/BrambleAndroidModule.java

...g/briarproject/bramble/network/AndroidNetworkManager.java

...rg/briarproject/bramble/network/AndroidNetworkModule.java

.../briarproject/bramble/plugin/tcp/AndroidLanTcpPlugin.java

...roject/bramble/plugin/tcp/AndroidLanTcpPluginFactory.java

...n/java/org/briarproject/bramble/plugin/tor/TorPlugin.java

...org/briarproject/bramble/plugin/tor/TorPluginFactory.java

.../org/briarproject/bramble/api/network/NetworkManager.java

...a/org/briarproject/bramble/api/network/NetworkStatus.java

...project/bramble/api/network/event/NetworkStatusEvent.java

...c/main/java/org/briarproject/briar/android/AppModule.java