Add "Programming Language :: Kotlin" classifier (#42)

Author: ileasile

trove_classifiers/__init__.py

@@ -375,6 +375,7 @@
     "Programming Language :: Haskell",
     "Programming Language :: Java",
     "Programming Language :: JavaScript",
+    "Programming Language :: Kotlin",
     "Programming Language :: Lisp",
     "Programming Language :: Logo",
     "Programming Language :: ML",