* gtester.c: read and decode log messages from test binary child processes.
fixed GIOChannel and child watch handling to process all messages and avoid
hangs. pass --verbose and --quiet on to children, default to --quiet.

* gtestframework.h: export g_test_log_type_name().

* gtestframework.c: send test log to --GTestLogFD=<fd> if given, removed
bogus -o-option.

svn path=/trunk/; revision=5898