v0.1.9

Added:
- Picks up data in form of CSV files. Used for row,col -> x,y brem
  coordinates
- Adding calo coordinates translator
- ElectronCorrector takes ecalo_bias, brem_track_1/2 options
- MCDT can also be loaded with RDFGetter. No friend trees added in this
  case

Improved:
- Plotting resolution plots with FWHM
- No need to use initializer for RDFGetter
- RDFGetter uses friend trees through RDataFrames.
- BranchCalculator can take wildcards for samples
- copy_samples will copy latest versions if -v not used.
- copy_samples can take all kind to download all supported kinds of
  trees
- RDFGetter will skip electron friend trees when doing muon.

Fixed:
- For SS samples use Ke combinations with same sign to calculate veto
  branches. Due to bug in AP that dropped OS combinations.