fix version retrieval

Author: oesteban

setup.py

@@ -26,7 +26,7 @@ def main():
         EXTRA_REQUIRES,
     )
 
-    pkg_data = {'templateflow': [
+    pkg_data = {__packagename__: [
         'conf/config.json',
         'conf/templateflow-skel.zip'
     ]}

templateflow/_version.py

@@ -495,6 +495,19 @@ def get_versions():
         # versionfile_source is the relative path from the top of the source
         # tree (where the .git directory might live) to this file. Invert
         # this to find the root from __file__.
+        root_dir = os.path.dirname(root)
+        if os.path.isfile(os.path.join(root_dir, 'VERSION')):
+            with open(os.path.join(root_dir, 'VERSION')) as vfile:
+                version = vfile.readline().strip()
+
+            return {
+                "version": version,
+                "full-revisionid": None,
+                "dirty": None,
+                "error": None,
+                "date": None
+            }
+
         for i in cfg.versionfile_source.split('/'):
             root = os.path.dirname(root)
     except NameError: