* fixed naming of rlp modules
* RlpStream cleanup
* appending short rlp lists (0...55 bytes) is 25% faster
* RlpStream does not use bytes module, nor trait Stream
* removed unused code from rlp module
* compiling ethcore-util with new rlp serialization
* compiling parity with new rlp serialization
* fixed compiling ethcore-light with new rlp serialization
* fixed compiling ethsync with new rlp serialization
* removed redundant comment, print
* removed redundant double-space
* replace usage of WriteBytesExt with ByteOrder
* TEMP: Bind to 0.0.0.0, don't check Origin
* More CLI options for IPFS
* CORS and Hosts filtering
* Allow current interface as origin
* Correctly handle CORS settings
* fix grumbles
This is done by requests sending CID with raw binary codec (0x55).
Note: this functionality is exactly the same as fetching state-trie
due to how db internals work in Parity atm.