MNT: require fsl-ci-rules - going to use conda functions

setup.py

@@ -8,7 +8,10 @@ from setuptools import setup, find_packages
 
 basedir = op.dirname(__file__)
 
-requirements = ['pyyaml', 'python-dateutil']
+
+# fsl-ci-rules can be installed beforehand from
+# https://git.fmrib.ox.ac.uk/fsl/fsl-ci-rules
+requirements = ['fsl-ci-rules', 'pyyaml', 'python-dateutil']
 
 version = {}
 with open(op.join(basedir, 'manifest_rules', '__init__.py')) as f: