SW-167. Fix; update SCons to wait on OpenVisualizer web subprocess.

* Allows the user to gracefully terminate from the console.
SW-167. Handle OS dependent value for signal in subprocess result code.
SW-167. Remove unnecessary console print statement.
SW-183. Updated SCons and setup.py with current data file locations
SW-183. Updated nativeSetup.py with current data file locations
Merge pull request #90 from kb2ma/develop_SW-167

SW-167. Fix.
Merge pull request #91 from kb2ma/develop_SW-183

SW-183. Fix.
FW-279. Adapting SW to new FW organization.
Merge pull request #92 from openwsn-berkeley/develop_FW-279

FW-279. Adapting SW to new FW organization.
bumping version number in preparation of release
bumping version after release