CHANGES IN GTOOLS 2.1.0
-----------------------

 - Added assert.R (and documentation)

 - Added the defmacro() function, extracted from Lumley T. "Programmer's Niche:
   Macros in {R}", R News, 2001, Vol 1, No. 3, pp 11--13, 
   \url{http://CRAN.R-project.org/doc/Rnews/}

 - Added DESCRIPTION and removed DESCRIPTION.in

