No count by default (#700)

* WIP: disable counting total table size by default

* Remove commented tests since PUT is no longer supported

* Fix tests for invalid range which require count

* Do not report count in PATCH response if not asked

* Return count of deleted items only if asked

* Return count for bulk insert when requested

* Changelog entry

test/SpecHelper.hs

@@ -84,6 +84,9 @@ loadFixture name =
 rangeHdrs :: ByteRange -> [Header]
 rangeHdrs r = [rangeUnit, (hRange, renderByteRange r)]
 
+rangeHdrsWithCount :: ByteRange -> [Header]
+rangeHdrsWithCount r = ("Prefer", "count=exact") : rangeHdrs r
+
 acceptHdrs :: BS.ByteString -> [Header]
 acceptHdrs mime = [(hAccept, mime)]