Merge pull request #222 from josephyzhou/develop

set secret/address + import/export config
Full python serpent support.
Shared libs on all platforms.
Merge branch 'develop' of github.com:ethereum/cpp-ethereum into develop
linker for local thread storage on OSX
Merging recent serpent commits
Integrated sc and lllc
Merge pull request #226 from caktux/osxthread

linker for local thread storage on OSX
Docs & consolidation of headers.
Fixed parser bug preventing nested arrays
Merge branch 'develop' of github.com:ethereum/cpp-ethereum into develop
Fixed problem with alloc.
Merge branch 'develop' of github.com:ethereum/cpp-ethereum into develop
Changed array_lit mechanics
Merge branch 'develop' of github.com:ethereum/cpp-ethereum into develop
Fix for older cmake versions.
Merge branch 'develop' of github.com:ethereum/cpp-ethereum into develop
Latest PoC-5 protocol changes.
Gensis block unit test.
Default config for new namereg &c.
Removed libethcore dependencies