PLFM-2642
Merge pull request #1198 from brucehoff/PLFM-2642

PLFM-2642
check
set etag
Merge pull request #1202 from john-hill/PLFM-2697

check
build
Merge pull request #1203 from john-hill/PLFM-2697

build
Merge pull request #1204 from Sage-Bionetworks/release-39

Release 39
PLFM-2701
Merge pull request #1205 from brucehoff/PLFM-2701

PLFM-2701
PLFM-2700
PLFM-2700
Merge pull request #1206 from brucehoff/PLFM-2700

PLFM-2700
handle filehandle updates. Separate delete rows api
Merge pull request #1207 from marcel-blonk/PLFM-2387

handle filehandle updates. Separate delete rows api
Merge pull request #1208 from brucehoff/PLFM-2699

Plfm 2699
PLFM-2699