update version

Author: jdjohn215

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: pollster
 Type: Package
 Title: Calculate Crosstab and Topline Tables of Weighted Survey Data
-Version: 0.1.5
+Version: 0.1.6
 Author: John D. Johnson [aut, cre]
 Maintainer: John D. Johnson <john.d.johnson@marquette.edu>
 Description: Calculate common types of tables for weighted survey data.

NEWS.md

@@ -1,3 +1,6 @@
+# pollster 0.1.6
+* fix bug which lead to explicitly missing factor levels still being included in the "valid percent" column.
+
 # pollster 0.1.5
 * replace deprecated `forcats::fct_explicit_na` with `forcats::fct_na_value_to_level`
 * require at least forcats v1.0.0