Added well->liquidRate() from WCONPROD.
Have added liquidRate setting from Schedule.cpp
Added RESV target to Well.
Changed name of item: ControlMode -> CMODE
Added Well::Producercontrolmode
Changed ControlEnums to become 2^n
Added bitmask status flag to keep track of which controls have been set.
Added addProductionControl() and dropproductioncontrol() to Schedule.
Added flag injectionControls to keep track of available injection controls.
Merge pull request #108 from joakim-hove/well-wconprod

Well wconprod