* Adds FragmentMol with minCuts specified
* Adds ability to cut by bond indices as opposed to smarts patterns
* Fixed API (remove maxBondCuts when bonds are sent in)
* Adds bond api test
* Fixes docs
* Small doc change
* Removes cstdint
* Adds ValueError minor bond retrieval optimization
* Removes fragMolHelper4
* Tests ValueError
* py3 fix