fixup last commit. now user can choose nvidia 32/64 bit arch. see below.

Reported and fixed by Gabriel Rossetti.
On some 64bit machines, compiling the 32bit version results in an
error from nvcc saying "cuda_runtime.h" not found. Originally
rootbeer compiles both for 32bit and 64bit. Now you can choose with
the following options.
  $ java -jar Rootbeer.jar -runtest SimpleTest -32bit (32bit only)
  $ java -jar Rootbeer.jar -runtest SimpleTest -64bit (64bit only)
  $ java -jar Rootbeer.jar -runtest SimpleTest        (32/64 bit)

This option is related to compiling the code. If you want your
compiled jar to run on both 32 and 64 bit systesm, you must
use the (32/64 bit) option. The 32bit compilation option will
only run on 32bit systems and the 64 bit option will only
run on 64bit systems.
GencodeOptions.getVersion uses String[] for exec
GencodeOptions.getVersion uses String[] for exec 2
GencodeOptions.getVersion uses String[] for exec 3
fixing compilation and class loading errors on win
Merge remote-tracking branch 'upstream/develop' into develop