version pep440 compliance added, not used yet
version pep440 compliance added, not used yet

Instead of just using the as-is output of git describe, which is
```tag-N-commit```
Now use
```tag.postN-commit```
The option pep440=True will make this pep440 compliant
```tag.postN```

aebrahim/cobrapy,zakandrewking/cobrapy,jerkos/cobrapy,JuBra/cobrapy,JuBra/cobrapy,jeicher/cobrapy,zakandrewking/cobrapy,jerkos/cobrapy,jeicher/cobrapy,aebrahim/cobrapy