0.2.8:	Added in vswind data set and windnetplot function to plot wind network
	(by GPN)

0.3.0: Added S3 methods: AIC, BIC, nobs, predict, simulate, vcov. Removed lmToBIC.
0.3.1: Corrected predict function
0.3.2: Added S3 method logLik
0.3.3: Removed GNARpredict and uses in other functions/help pages. Added warnings to S3 methods where additional arguments (...) are ignored.
0.3.4: Changed NAMESPACE to export non-S3 functions