Improved layout of search algorithm panel.
Fixed input of parameter for placebo and proportional model.
Added model.param list / ppp/placebos parameters to getValue/design.efficiency functions.
Designtable calculates efficiency on the fly (WIP: Add HashTable).
Created const fields for PLACEBOMODEL/PROPORTIONALMODEL and fixed wrong hand over to R.
getDesignText gains parameter 'model.param' -> next task: New general.carryover function.
Updated NEWS.
Function estimable calls 'getModelNr' and new function 'meanEff' which calculates simply mean of off-diagonal entries.