Merge pull request #61 from OpenPIV/alexlib-patch-7

updated version to 0.20.2 after several PR

Author: alexlib

setup.py

@@ -69,7 +69,7 @@
 
 
 setup(  name = "OpenPIV",
-        version = "0.20.1",
+        version = "0.20.2",
         author = "OpenPIV contributors",
         author_email = "openpiv2008@gmail.com",
         description = "An open source software for PIV data analysis",