update 'Date' (carefully checking git log) - for CRAN release

DESCRIPTION

 Package: CLA
 Version: 0.90-0
-Date: 2017-08-24
+Date: 2017-09-25
 Title: Critical Line Algorithm in Pure R
 Author: Yanhao Shi <syhelena@163.com>,
 	Martin Maechler <maechler@stat.math.ethz.ch>
 Maintainer: Martin Maechler <maechler@stat.math.ethz.ch>
-MaintainerNote: or Yanhao Shi ___TO BE DECIDED___
 Depends: R (>= 3.2.0)
 Imports: stats, graphics
 Suggests: fGarch, FRAPO, Matrix
-Description: Implements Markovitz' Critical Line Algorithm (CLA) for
+Description: Implements 'Markovitz' Critical Line Algorithm ('CLA') for
   classical mean-variance portfolio optimization.  Care has been taken for
   correctness in light of previous buggy implementations.
 License: GPL (>= 3) | file LICENSE