PowerTOST v1.4-7

• Bug corrected in functions using expected power
• Function type1error.2TOST() no longer available since it suffers from
  insufficient precision to obtain the type 1 error (TIE) via simulations.
  Due to the intersection-union principle the TIE is always upper bounded
  to alpha by theory.
• Function power.2TOST() now based on simulations to obtain the power
  of 2 TOSTs (statistical flaw in 4-dimensional t-distribution approach).
• sampleN.2TOST and man page adapted according to this change.
• regulator="FDA" implemented in scABEL.ad().
• New function power.RSABE2L.sds() which implements the 'exact' based
  method for RSABE (ncTOST) of the two Laszlos. Documentation included.