Merge pull request #19 from joezuntz/ruamel-update

Ruamel update

Author: mr-c

doc/source/installation.rst

@@ -20,7 +20,7 @@ python-cwlgen dependencies
 
 python-cwlgen is initially built with Python3 and uses the following libraries:
 
-- ruamel.yaml (0.13.7)
+- ruamel.yaml (0.15.87)
 - six (1.10.0)
 
 .. _installation:

setup.py

@@ -9,7 +9,7 @@
         author_email='[email protected]',
         license='MIT',
         keywords = ['cwl'],
-        install_requires=['six', 'ruamel.yaml==0.13.13'],
+        install_requires=['six', 'ruamel.yaml==0.15.87'],
         packages=["cwlgen"],
         classifiers=[
             'Development Status :: 4 - Beta',