Changed default method of reading table files to the "slow" method, so that xpose.data(..other arguments.., method="slow") is default. For other methods see ?readnmtable

Other small changes

Fix a bug where the filtering of "-99" rows of table files would not filter on all plotting variables.

Fix a bug where items in the catab and cotab files were not added to the list of covariates in the xpose database (#16).

Fix a bug where csv files were improperly read into the database in some situations (#16).

Updated code that was using depreciated dplyr and tibble functions.

allow changes in the relative length of the censored lines in kaplan.plot().

Handle directory without trailing slash for xpose.data() (#14, @rikardn).

fix bug in classic menu system not allowing change of variable definitions.

Various small spelling and bug fixes (#13, @vrognas).

Update to xpose.VPC() so that outliers can be identified and plotted.

Update to xpose.VPC() so that for any lines in the VPC they are plotted at the median of the observed values of the X axis for all bins by default.

Update to xpose.VPC() to allow a rug at the bottom of the plot showing where the bins are located.

Update to the namespace so that only lattice is loaded when loading xpose.

All documentation now written in roxygen

Updates to boot GAM and boot SCM plots and documentation.

Various small bug fixes.