HDFFV-8880: Remove t_posix_compliant test references
remove usage of // comment styles.
fix printf format warnings in dtypes test.
remove use of C99 PRI that failed on windows in dtypes.c
fix bugs where hid_t were assumed to be 32 bit ints or herr_t.
Snapshot version 1.9 release 192
HDFFV-8897: remove include extra paths.
Snapshot version 1.9 release 193
JAVA-1880: hdfview failure to load plugins identified default value was incorrectly formed.

Tested: windows
merge from trunk.