removed exec flag on samples
automatic load all v40 modules
Added discount models (RH and RL)
Merge branch 'discounts' into develop

* discounts:
  Added discount models (RH and RL)
  automatic load all v40 modules
  removed exec flag on samples
Merge branch 'develop'

* develop:
  Added discount models (RH and RL)
  automatic load all v40 modules
  removed exec flag on samples