Merge pull request #69 from amccaugh/dev

1.3.0

Author: amccaugh

.travis.yml

@@ -20,6 +20,7 @@ install:
   - pip install --upgrade pip
   - pip install -U matplotlib==2.2.3 # Needed because Travis CI pulls 3.0.2 even though it doesn't work with Python 2.7
   - pip install -U scipy==1.1.0 # Compatible with Python 2 and 3
+  - pip install -U rectpack
   - python setup.py install
 
 script: