fixed tests submodule branch

rpc net methods returns real peer count && protocol version

Add homestead & random tests.

Fixing suicide with self-refund to be consistent with CPP.

stubs for rpc methods

Conflicts:
	src/externalities.rs

clippy, missing docs, renaming etc.

impl missing methods in tests

General tests and some helpers

Note additional tests are fixed, fix doc test.

jsonrpc http server