Pymchelper

- Fixes multiple issues in generated tripcubes 174
- enable new .bdo fileformat for SH12A >= 0.6.0 170

- fix wrong calculation of stderr when merging many files 162
- fix double file extensions in output files 151
- fix bad placement of units on colour bars in plots 156

Version coming with new syntax for selecting converter. Previously used way (`convertmc ... --converter conv_name`) is now replaced with (`convertmc conv_name ...`), 132 .

Completely new documentation layout (142)

New undocumented converter to generate DDD files for SHIELD-HIT12A (116)

- New: Added `pld2sobp` for running PLD files from IBA accelerators in Monte Carlo codes 124
- New: error bars printed in default ASCII output as a new column 119,120, 130
- Fix: reported statistics NSTAT when merging many files 121, 118
- Fix: check if output dir exists before doing calculations 128
- Fix: when scaling with particle numbers, change units to Gy and allow floats as input. 127
- Fix: error when plotting LET units 112

Bugfix release for reopened issue 105

Bugfix release, fixed 112