Pdb-tools

What's Changed
* Corrects behavior with `ANISOU` lines in `pdb_selaltloc` by joaomcteixeira in https://github.com/haddocking/pdb-tools/pull/131


**Full Changelog**: https://github.com/haddocking/pdb-tools/compare/v2.4.4...v2.4.5

Merge PR 109
Adjust fhandle names to files and iterables.

pdb-tools can now be used as a library in a uniformed interface.

Commits included in this release:
* 40 - Makes chain selection case insensitive.