* do not use V8 variant of AQL functions in early optimization stage when a C++ variant is available
* additionally, simplify AQL function definitions and aliases
* warn when more than 90% of max mappings are in use
* added C++ variant of replication catchup
* added `--log.role` option
* updated CHANGELOG
* removed non-existing scheduler.threads option from config
* removed useless __FILE__, __LINE__ invocations
* updated CHANGELOG
* allow a priority V8 context
* remove TRI_CORE_MEM_ZONE
* try to fix Windows errors & warnings
* cleanup
* removed memory zones altogether
* exclude system collections from collection tests
added C++ implementation for AQL SLICE() function
allow execution of expressions in C++ that contain calculated object elements
do not merge two calculation nodes if they are of different expression types (e.g. simple vs. V8)
added de-duplication of object keys in case the object contains non-unique names
Jan
Manuel B
Simran Brucherseifer
Jan Steemann
Michael Hackstein
Frank Celler