[DynInst_API:] commit: further fixes for version definitions

[Bill Williams <bill@xxxxxxxxxxx>]

9.0.2 has another issue with out of source builds: version.h was not 
properly in the include path or the install path. Fixed.
USERS: I am not tagging 9.0.3 for another 24 hours, minimum. Please send 
any bug reports on git-head to the list.
DEVELOPERS: DO NOT commit anything that is not specifically a bug fix 
for a bug posted to the list to master until 9.0.3 is tagged.
Thanks for your cooperation.

--bw

Bill Williams
Paradyn Project
bill@xxxxxxxxxxx