SERVER-12156 Split version.h/cpp into version and version_reporting.
SERVER-11675 Always assume we need score if doing a $text query in agg

Code to decide if it was needed didn't work in all cases.
SERVER-11904 Preallocated files are sparse in FreeBSD/UFS.
Do not always assume FreeBSD is running on ZFS and zero-fill the file
at allocation time. This matches the behaviour of mongod on Linux for
non copy-on-write filesystem, e.g. UFS, and helps preventing disk
fragmentation.
SERVER-12196 disable failing test
SERVER-12185: ensure doc is not inserted if it fails the 'cannot index parallel arrays' test