Release history of the "PIPS" package

Changes in "PIPS" package version 1.0.1
- Add support for obs.conf.level parameter so that confidence level for
  observed data and observed+simulated data can differ.  obs.conf.level
  element added to objects of type pred.int.

Changes in "PIPS" package version 1.0
- This is the first public release (2012-02-10)