Readme_features.txt

- remove deprecated nuance from WCSim.mac
- New RootOptions libs.
- Naming HK -> EggShaped HK (trivial)
- InteractionMode enum
- Naming Gun instead of Normal, and add GPS mode
- Enumerations
- Flat ROOT file
- Add mPMT detector configs. (in progress)
- mPMT options.
- TrackingAction changes to keep more relevant particles
- use unordered_map from c++11, so require gcc4.4 or higher and -std=c++0x
- change color for muons for better visualization in OGLSX OGLQT
- more optional debugging info for overlaps
- macro and code for OGLQt visualization
- Black sheet refractive index and make it into a skinsurface
- Reoptimize Stacking action code
- Proper kinetic energy calculation in PrimaryGeneratorAction
- Improved HSV colour scheme for hit charge in visualizer.
- Restructure ConstructPMT for optical pucks.
- Fixed glassthickness/photocathode bug.