Bump version and update NEWS

New features -> increase minor version number

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: desctable
 Title: Produce Descriptive and Comparative Tables Easily
-Version: 0.1.9
+Version: 0.2.0
 Authors@R: c(person("Maxime", "Wack", email = "maximewack@free.fr", role = c("aut", "cre")),
              person("Adrien", "Boukobza", email = "hadrien_b@hotmail.fr", role = c("aut")),
              person("Yihui", "Xie", email = "xieyihui@gmail.com", role = c("ctb")))

NEWS

@@ -1,3 +1,8 @@
+Version 0.2.0
+
+- Add support for purrr::map-like formulas for statistical and test functions
+- "conditional" formulas are no longer supported. Replace `~ is.normal ~ mean | median` with `~ if (is.normal(.)) mean(.) else median(.)`
+
 Version 0.1.9
 
 - Fix in default options for datatable output to follow DT update