Added Adams Heapwalk to determine amount of unallocated malloc memory

Conflicts:

	src/modules/utils/simpleshell/SimpleShell.cpp
Merge pull request #238 from wolfmanjm/upstreamedge

Upstreamedge
Merge remote-tracking branch 'upstream/edge' into working

Conflicts:
	src/modules/utils/simpleshell/SimpleShell.cpp