Add license to source distribution (#396)

mariusvniekerk · gatesn · commit 28df4c01f25e · 2018-08-26T19:05:59.000+02:00
diff --git a/MANIFEST.in b/MANIFEST.in
@@ -1,3 +1,4 @@
 include README.rst
 include versioneer.py
 include pyls/_version.py
+include LICENSE
