Added get_vars function
rename get_vars() to sim_vars(), sim_vars() sorts variable names
merging with USGS-R ahead of pull request
fix example
Merge pull request #104 from joneslabND/master

add sim_vars()
Fixed issue #94 hard coded 15 colorsteps
Added plot_temp_compare for paried heat-map plots.
added newly imported package
Merge pull request #105 from lawinslow/master

fixed issue and added dale's paired heatmap plot
dup check moved to after trunc_time
Merge branch 'master' of github.com:USGS-R/glmtools