* RPC errors & logs (#1845)
* Refactoring errors in RPC
* Updating jsonrpc-core
* Fixing code_at
* Avoid mentioning obvious segments in proof
[ci:skip]
* fixed cache_manager lock order
* Purging .derefs, fixing clippy warnings. (#1890)
* Fixing clippy warnings
* Purging derefs
* Simplifying engine derefs
* Simplifying more engine derefs
* Adding more details to miner log
* fixed#1889, .DS_Store is no longer treated as key file (#1892)
* fixed#1889, .DS_Store is no longer treated as key file
* ethstore filters directories, hidden files and common system files
* fixed compiling
* fix regression with geth dir
* fix regression with geth dir
* Fix ipc compilation and add ipc feature to test targets (#1902)
* fix compilation and add it to the ci run
* no separator?
* use quotes and spaces
* RocksDB version bump
* Don't return deleted nodes that are not yet flushed (#1908)
* polling & connection timeouts (#1910)
* Peers RPC + UI displaying active/connected/max peers (#1915)
* Peers API
* Bumping Parity-UI
* Fixing tests
* Save nodes removed from backing_overlay until commit (#1917)
* moving ipc deriving to trait
* refactoring of the client
* all compiled
* proved all working
* warnings purged
* allow hypervisor to specify initialization payload in two ways
* using binary initialisation payload for sync
* some docs
* logger to separate crate
* log settings for sync bin
* forwarding logging arguments to the sync
* trait
* implentated, lifetime issue still
* full api
* test mod
* working open
* get/retrieve
* fix warnings and bug
* working serialization of &[u8] parameters
* client attributes
* fix empty payload ser/de
* [ci skip] debug assert out
* extra deserialization test
* extra serialization test
* extra serialization test
* serialization fixes, nupdate rocksdb
* open test working
* result bug & remove some scaffolds
* fix warnings
* more simple tests
* consistent quotes
* get rid of dedicated is_open flag
* hashmap -> btreemap
