[Clas12_software] ready for new release

[Raffaella Devita]

Dear FX and Will,
all the changes we wanted to have in the new release have been merged to the development branch. Can you create a new tag?
Since there are major changes, the tag id should be 5b.5.0. It would be good to have a full list of the commits in the release note; also
this will be compatible with gemc 4a.2.4.
There will be probably a few more updates, beyond what was planned, in the next days from EB development and the swimming API but the tag can be already used for cooking since some validation on MC and real data has already been performed.
In particular it would be good to recook run 4013 and 4150. In this cooking, it would be useful to test the new region2 corrected geometry: to do that, the yaml file should be modified to use the service options indicated below.
Best regards,
    Raffaella


...
  services:
    DCHB:
      torusMap: Symm_torus_r2501_phi16_z251_24Apr2018.dat
      solenoidMap: Symm_solenoid_r601_phi1_z1201_2008.dat
      useStartTime: "true"
      geomDBVariation: may_2018_engineers
      constantsDBVariation: calib
    DCTB:
      geomDBVariation: may_2018_engineers
      constantsDBVariation: calib