Updated the wheatprices demo.
Removed papers from the CITATION file.
Updated the package description: start-up message, reference to the
vignette and date.
Added first version of the vignette.
Some minor changes to the documentation.
Added a 'getting started' wiki page.
Fixed a few typos in the vignette.
Added GitHub URL to DESCRIPTION and changed Depends to Imports.
Fixed a small mistake in the 'getting started' wiki page.
Fixed demo (qar-simulation). Moved stats4 back to Depends.
Minor changes to the documentation.
Changed the layout of the NEWS file.
Fixed the NEWS file.
Merge branch 'develop'