* overflow check in addition
* add test
* Unexpose methods on UI RPC. (#6295)
* Add more descriptive error when signing/decrypting using hw wallet.
* format instant change proofs correctly
* propagate stratum submit share error upstream, fixes#6258 (#6260)
* updated jsonrpc (#6264)
* Using multiple NTP servers (#6173)
* Small improvements to time estimation.
* Allow multiple NTP servers to be used.
* Removing boxing.
* Be nice.
* Be nicer.
* Update list of servers and add reference.
* Fix dapps CSP when UI is exposed externally (#6178)
* Allow embeding on any page when ui-hosts=all and fix dev_ui
* Fix tests.
* Fix cache path when using --base-path (#6212)
* Time should not contribue to overall status. (#6276)
* v1.7.1
This is a huge change, which includes some changes to replace code that
originally cloned to reuse allocations instead. The updated
`elastic-array` crate renames its consuming `Vec`-conversion method to
`into_vec`, which means that I can do a simple
`sed -i 's/to_vec/into_vec/'` and then fix the compilation errors.
This commit is probably a minor performance win and definitely a
significant readability win.
* 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
