Merge branch 'remove-old-bluetooth-code' into 'master'

...arproject/bramble/plugin/droidtooth/DroidtoothPlugin.java

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

.../org/briarproject/bramble/api/crypto/CryptoComponent.java

...ava/org/briarproject/bramble/api/crypto/PseudoRandom.java

...iarproject/bramble/api/crypto/StreamDecrypterFactory.java

...iarproject/bramble/api/crypto/StreamEncrypterFactory.java

...arproject/bramble/api/invitation/InvitationConstants.java

...iarproject/bramble/api/invitation/InvitationListener.java

.../briarproject/bramble/api/invitation/InvitationState.java

...g/briarproject/bramble/api/invitation/InvitationTask.java

...project/bramble/api/invitation/InvitationTaskFactory.java

...va/org/briarproject/bramble/api/plugin/PluginManager.java

.../briarproject/bramble/api/plugin/duplex/DuplexPlugin.java

...iarproject/bramble/api/transport/StreamReaderFactory.java

...iarproject/bramble/api/transport/StreamWriterFactory.java

...main/java/org/briarproject/bramble/BrambleCoreModule.java

...briarproject/bramble/contact/ContactExchangeTaskImpl.java

.../org/briarproject/bramble/crypto/CryptoComponentImpl.java

...iarproject/bramble/crypto/StreamDecrypterFactoryImpl.java

...iarproject/bramble/crypto/StreamEncrypterFactoryImpl.java