show and hide need to return bools.
Merge pull request #1 from robertmaynard/compiler_warnings

show and hide need to return bools.
Code style/consistency updates
Removed qt4_wrap_cpp - using automoc

These calls are not needed/used as we are making use of the automoc
feature in CMake for this executable.
Added a simple volume module

Not sure if this is the "right way" as I skipped the filter, and
just changed the representation. It is certainly effective and may
need some trivial filter in the future that just holds a pointer to
the original volume.
Added the chart, set it to display empty

Still need to generate the histogram, and feed it data on demand.
Baby steps...
Add an install rule for matviz
Merge pull request #2 from mathstuf/dev/add-install-rules

Add an install rule for matviz