Merge pull request #79 from brucehoff/SYNR-435

SYNR-435
Merge pull request #80 from brucehoff/SYNR-464

SYNR-464
SYNR-471
SYNR-471
SYNR-475
SYNR-476
tests for synDelete; documentation updates
updated test for exclusiveFileAccess
Merge pull request #81 from brucehoff/SYNR-471

SYNR-471
SYNR-464