Update README.md

Added note about debugger in README file
add compression flags
Merge branch 'devel' of github.com:AlloSphere-Research-Group/AlloSystem into devel
minimize allocation calls when saving
support saving luminance format
compression support for more file types
Fixed assert
Merge branch 'devel' of github.com:AlloSphere-Research-Group/AlloSystem into devel
TESTING: Removed bashisms from allocore/install_dependencies.sh .
TESTING: Removed bashisms from allocv/install_dependencies.sh .
TESTING: Removed bashisms from alloutil/install_dependencies.sh .
TESTING: Removed bashisms from allonect/install_dependencies.sh .
TESTING: Removed bashisms from examples/mysql/install_dependencies.sh .
Changed default in debug.sh to not build alloGLV.
TESTING: Removed bashisms from run.sh and debug.sh .