* reuse single RNG instance for all crypto key generation
* use foolproof rng
* initRng -> newRng (because it's ref)
* fix test
* imports/exports, chat fix
* fix rsa
* imports and exports
* work around threadvar issue
* fixup
* mac workaround test
* Bugfix: Dialing an already connected peer may lead to crash
* Introduced a standard_setup module allowing to instantiate
the `Switch` object in an easier manner.
* Added `Switch.disconnect(peer)`
* Trailing space removed (sorry about polluting the diff)