DEV: Added script for building all versions of zipline conda package

etc/conda_build_matrix.py

@@ -0,0 +1,15 @@
+from itertools import product
+import os
+
+py_versions = ('2.7', '3.4')
+numpy_versions = ('1.9', '1.10')
+
+
+def main():
+    for pair in product(py_versions, numpy_versions):
+        os.system('conda build conda/zipline -c quantopian '
+                  '--python=%s --numpy=%s' % pair)
+
+
+if __name__ == '__main__':
+    main()