2011-04-19  mudassir

	* ChangeLog: added changelog file
	* R/rsdepth.R: changed call to rsdepth by passing x and y coordinates in different 
	  variables, commented out printing of rsdepth
	* R/rsmed.R: added code for approximate median calculation with eps parameter,
	  now sending x,y coordinates to C call in different parameters.
	* man/rsmed.Rd: updated man file for rsmed.R to include eps parameter, changed example
	  accordingly.
	* src/rsdepth.cpp: added definition of MAXPOINTS and set it to 100000, commented out endOf
	  array as not being used, also changed definitions of functions to accept x and y coordinates 
	  in separate arrays.
	* DESCRIPTION: updated DESC file

