* backport of test data generation for maintenance from devel
* 3.4 working
* fixing index use in cluster while still being built
* fixed broken views
* correct 200 for ensureIndex
* merge with 3.4
* agency comm to handle replace in array
* supervision changes
* cluster info's exsureIndex
* 3.4 ready
* timeout
* missing files from origin
* neunhoef complaints
* bogus entry
* no need to wait for current once again
* no longer necessary. done in IndexFactory now
* correct comments
* left overs
* dead code revived
* Move CHANGELOG entry to the right place.
- Schmutz now called "Maintenance" and completely implemented in C++
- Fix index locking bug in mmfiles
- Fix a bug in mmfiles with silent option and repsert
- Slightly increase supervision okperiod and graceperiod
* safety checkin of Node throw reduction.
* final round of Node throw protection. Common accessors now protected to force code to hasAsXXX() functions.
* Really enforce the hidden option --server.maximal-threads if given.
* Switch off --log.force-direct in scripts/startStandAloneAgency.sh
* Lower the timeout for sending AppendEntriesRPC to 150s.
* Erase _earliestPackage when becoming a leader.
* Challenge leadership in agent main loop.
* Use steady_clock for _earliestPackage.
* Change _lastAcked and _leaderSince to steady_clock as well.
* time difference calculations based on old readSystemClock to steadyClockToDouble
* All system_clock transitioned to steady_clock in Agent. Remaining system_clock are user input / output or timestamps
* Inception system_clock to steady_clock
* Fixed object assignment operator for agency's key value store
* Node's toJson is now actually toJson. getString should be used for string extractions
* adjust agency's documentation (clarify precondition)
* added debugging methods
* try to fix invalid access in case of error
* remove unused members
* bugfixes and comments
* all agency fixes in
* merge bug
* partially unguarded Agent::lead fixed
* all agency fixes in
* added nrBlocked to thread startup eval
* added nrBlocked to thread startup eval
* recombination of cases in State::get
* some maps replaced with unordered_maps
* optimized maps some