Feature Lists Have Different Ordering In Python 3.5 vs. 3.6+

[jeremyliweishih]

Feature Lists Have Different Ordering In Python 3.5 vs. 3.6+

Due to dictionaries retaining insertion order in python 3.6+, feature lists in Python 3.6 and 3.6+ have a different order. It is unknown where this creates issues other than serialization and deserializing between different versions

[rwedge]

Since Featuretools has dropped Python 3.5, we no longer have this problem