dq 1.1.1

Fixed a bug when no variables have missings in format.dq_pairwise(). (#3)
Fixed a bug when factors or characters have only one level in dq_pca(). (#4)

dq 1.1.0

Fixed a bug with some edge cases for dq_pca (#1).
Added support on Travis CI
Added summary() functions.
Fixed bug in plot.dq_pca(). (#2)

dq 1.0.0

Initial package release.