Merge branch 'Multi-Mutations-Dean' of https://github.com/MattDeanMPhys/Cancer into General-transition-rate
50 mutations

the c++ has been corrected (nm != the total number of r’s read in, it
is equal to the total-1)
Merge branch 'Refactoring-Canc3-attempt' of https://github.com/MattDeanMPhys/Cancer into General-transition-rate
New data

New data
Merge pull request #15 from MattDeanMPhys/General-transition-rate

General transition rate