Fix skipping molecules while using OBConversion::Read() method (mainly for bindings).
Initial commit for EQeq crystal charge equilibration method

Run through python with

```
eqeq = pybel.ob.OBChargeModel_FindType("eqeq")
eqeq.ComputeCharges(mol.OBMol)
```
Merge pull request #52 from mwojcikowski/fix-skip

Fix skipping molecules while using OBConversion::Read() method
Merge pull request #54 from patrickfuller/eqeq

Initial commit for EQeq crystal charge equilibration method