Added list of changes since previous release to CHANGELOG
Updated install_github instructions to avoid building vignettes for
the impatient
added a couple of entries to the change log
Merge branch 'master' of https://github.com/JeffreyRacine/R-Package-np
fixed a bug which cause CDF kernels and adaptive nearest neighbors to be incompatible
Merge branch 'master' into npRmpi

Conflicts:
	CHANGELOG
	DESCRIPTION