Dr. HeapStat's postprocess.pl server should exit during error in the flash side

_From [derek.br...@gmail.com](https://code.google.com/u/117968039472581148324/) on December 10, 2010 19:52:14_

PR 502472

Depending upon how and when the flash part is exited, the server might hang.

Before loading data, i.e., making the socket connection:
if flash player is killed, exited or file closed the server will hang
After:
if browser killed/existed the server will exit
if flash file is closed but player not exited the server will hang

_Original issue: http://code.google.com/p/drmemory/issues/detail?id=215_