Update readme help documenation.
Rename config in codegen.
Refine help and dispatch.
Fix gcc warnings.
Avoid multiline comment.
Parallel make.
remove parallel make until we get rid of recursive make.
Merge pull request #68 from evoskuil/develop

Refine help and dispatch.
Fix gcc warnings (for real).
Merge pull request #69 from evoskuil/develop

Fix gcc warnings (for real).
Merge pull request #70 from libbitcoin/develop

Refine help and dispatch.