v1.2 (see MR !23)

- Updated treatment of magnetic field using Hillas parameterization for effective magnetic path length of electrons
- Add the option to set starting grammage in addition to initial distance
- Add azimuth angle distribution of photons on detection plane
- Change of variable names in output file (breaking change!)


v1.1.1
- Added downward going shower compatibility, the NKG lateral distribution... (see MR !18)
- Added input-file cl option and 2D histogram profile (see MR !17) 

Bug fixes:
- Downward going showers now stop at detector level (see MR !19)
