no need to extend FileStream for GemStone
eliminate duplicate dumping of transcript in case of error for gemstone
add GemStone-2.4.5.3 to list of supported gemstone versions
switch 2.4.5.3 to 2.4.5.2 ... 2.4.5.3 not released on Linux
get rid of sent but not implemented message so GemStone tests run clean
Merge branch 'dev'