ToDo list

Some details are still not fixed on GDL.

• adding testsuite to the packages

• maintaining up-to-date packaging on OSX.

• Widgets on OSX (on local and also through remote with ssh -X)

• Widgets on MSwin -- they are there but need some polishing.

• packaging on MSwin (how to download it ? how to use it)

• better managing of OpenMP on OSX (trying harder to detect & use it)

• robust detection of Readline files to avoid mixing with Editline (esp. on OSX)

• page by page HELP (as it is now available for HELP, /recall_com)