add Wei to DESCRIPTION, remove unused license

Author: jrosen48

DESCRIPTION

@@ -8,7 +8,8 @@ Authors@R: c(
     person("Qinyun", "Lin", , "linqinyun1001@gmail.com", role = "ctb"),
     person("Spiro", "Maroulis", , "Spiro.Maroulis@asu.edu", role = "ctb"),
     person("Sarah", "Narvaiz", , "snarvaiz@alum.utk.edu", role = "ctb"),
-    person(c("Kenneth", "A"), "Frank", , "kenfrank@msu.edu", role = "ctb")
+    person(c("Kenneth", "A"), "Frank", , "kenfrank@msu.edu", role = "ctb"),
+    person("Wei", "Wang", , "wwang93@vols.utk.edu", role = "ctb")
   )
 Description: Statistical methods that quantify the conditions necessary to
     alter inferences, also known as sensitivity analysis, are becoming