2.0.1 patch: updated specview version, fixed magnitudes conversion bug
change install phase to package
maven now correctly packages tar.gz files during package phase
Merge branch 'feature/fix_packaging' into develop
first stab: create model event, listener, and decouple SherpaModelManager
log event processing
Merge branch 'feature/decouple_viewer' of https://github.com/ChandraCXC/iris into feature/decouple_viewer