Merge pull request #6 from sawjlab/develop

Use git protocol instead of https so git can be used on ifarm.
1.  Implement changes in SCons to improve detection of ROOT installation
and SCons version checking (now checks for version 4.9.9 of SCons, which
is the newly implemented version number in the local SCons installation
(in podd).  Note that this change will now require use of that updated local version as
packaged with podd.

2.  Change to SConstruct.py to add -DHALLC_MODS defines (now consistent
with Makefile) for conditional compilation in certain parts of podd.

3.  Improvement in configuration for 64bit/32bit compilation on Linux.
Merge branch 'brash_scons' of https://github.com/brash99/hcana into brash99-brash_scons
Revert to podd commit from main repository.
Switch submodule to analyzer (podd) release "Release-150".
   Includes addition of scons to podd.
Merge pull request #9 from sawjlab/develop

Switch submodule to analyzer (podd) release "Release-150".
Add hit and cluster energy depositions from negative & postivie PMTs
Added Y coordinate correction to calo. energy dep.-s
Merge pull request #10 from sawjlab/vardan

Latest additions to Shower code
Merge remote-tracking branch 'upstream/develop' into develop

Conflicts:
	.gitmodules
	podd