Merge remote-tracking branch 'gh/master' into docs

postpic/__init__.py

@@ -75,4 +75,7 @@ __all__ += io.__all__
 
 __version__ = get_versions()['version']
 __git_version__ = get_versions()['full-revisionid']
+# work around if zip is downloaded from github and current version does not have a tag.
+if __version__ == '0+unknown':
+    __version__ = __git_version__
 del get_versions