version 0.9.0:
    * Introduced new print_level = 3. Shows values of controls (16 April 2012 on R-Forge).
    * Changed Makevars and Makevars.win to link to version 2.3 of NLopt compiled with --with-cxx option. This makes the StoGo algorithm available. (31 April 2013 on R-Forge).

18 November 2011, version 0.8.9:

    * Changed CRLF and CR line endings in src/Makevars to LF line endings to remove a warning from R CMD check.
    * Adopted some changes proposed by Brian Ripley to src/Makevars.win in order for nloptr to work with his new toolchain.

28 September 2011, version 0.8.8:

	* Updated src/Makevars to compile on Solaris.
	
24 September 2011, version 0.8.7:

	* Updated src/Makevars to compile on Solaris.

19 September 2011, version 0.8.6:

	* Updated src/Makevars to compile on Solaris.

03 September 2011, version 0.8.5:

	* Updated src/Makevars to compile a working binary for MacOS.

12 August 2011, version 0.8.4:

	* added new options:
		- data/nloptr.default.options.R: new file with a description of all options, mostly taken from the NLopt website (for internal use).
		- R/nloptr.print.options.R: function to show the description for a specific (set of) option(s). 
		  E.g. nloptr.print.options( option="maxeval" )
		  nloptr.print.options() shows a description of all options if called without arguments.
		- added option to print a description of all options and their values ('print_options_doc' = TRUE/FALSE).
		- added option population to set the population of stochastic/global solvers ('population' = 1000).
		- added option ranseed which sets the random seed for stochastic solvers ('ranseed' = 3141). A value of 0 uses a random seed generated by system time.
		- option check_derivatives is no longer listed as a termination condition.
		- documented the option to set the tolerance of (in)equality constraints (tol_constraints_eq, tol_constraints_ineq).
		
	* tests/banana_global.R: new test file that uses the algorithms (CRS, ISRES, MLSL) and options ranseed and population.
	
	* src/nloptr.c: capture error codes from setting options.

	* R/nloptr.print.R: output gives 'optimal value of controls' when status = -4 (some error code), this is changed to 'current value of controls'.