* 'engine-api' of https://github.com/arangodb/arangodb:
transaction-specific count tracking
initial implementation of count()
Fixed memory leaks in traverser.
Fix links in docs
Fix links in docs
pass trx into numberDocuments
Fixed undefined behaviour in TraverserCache.
improve error message in case wrong JSON is sent to the server
* 'engine-api' of https://github.com/arangodb/arangodb:
Fixed HashIndex matchesDefinition method
Marked hash index selectivity test as MMFiles only
Fixed persistent index
Added some small fixes
* 'engine-api' of https://github.com/arangodb/arangodb: (46 commits)
Merged RocksDBPathBasedIndex into RocksDBVPackIndex.
fix handling of externals
fix toArray()
fix returning documents
Added hash-, skip list, persistent indexes
harmonize filtering - filter on full filename.
mini modifications
standardize starting of servers for replication tests
Edge index compliant with design doc
another fix for #2404
Moved „removeLargeRange“ method to commons
Added length byte to IndexValue keys.
fixed issue #2404
Added drop to primary index
Added drop() to indexes
Fixes a coordinator crash in Clustered Traversal. In case of failover during query planning.
Fixed edge index
Expand on CORS documentation
Let ArangoDB handle the allow-credentials header
make the authentication tests run on directories
...
* 'engine-api' of https://github.com/arangodb/arangodb:
move engine sources into their own cmake files
Fixed exception because of hash index
Fixed feature start order
fix recovery test
Edge index fixes
remove alignas
fix recovery test
force recovery tests to fail when not compiled with failure-tests
implement SLEEP() in C++
remove useless and harmful adjustment (lowering) of file descriptors limit
Windows: fix namespaces
fix recovery tests
slightly adjusted index creation
Removed some alignas directives.
alias boost to catch
fix arangosh test
start splitting testing.js into handy bits.
start splitting testing.js into handy bits.
start splitting testing.js into handy bits.