* 'devel' of https://github.com/arangodb/arangodb:
Fixing index markers
exclusive locks for indexes
better incremental sync
grunt build
Avoid log spam.
Removed code paths that wrote objectIds into the Agency. This did break replication.
WAL: honor tick end value
WAL fiter after collection
Reactivated client-side filtering of unnecessary markers
Added an Assert when persisting an index it's objectId is not allowed to be 0
The RestReplicationHandler now inserts new ObjectIds when replicating collections
moved files
add dependencies for TransactionManager
fix include
move engine-specific test into engine test
Jan Christoph Uhde