Initial version of SCons-based build package ...
Local scons package ... version 2.3.0 ... necessary for shared
library building to work properly.
Made SConstruct a softlink to SContruct.py
Added SConstruct.py
Changes to fix Hall A library versioning problem (now consistent with Makefile)
XXX
Modified .gitignore to ignore *.os object files (default for SCons builds)
Updates to gitignore ..
Remove .pyc files.