BibAuthorID: optimization, fixes and pep8
- Deep optimizations in Tortoise code
- Bugfixes in claiming interface
- Bugfixes in Tortoise code
- Fixed a missing exception trap in arXiv login
- Switched some asserts to ifs in paper claiming code, hence handles gracefully the most common know issues instead of failing miserably. Those issues are due to claims coming out of outdated sessions claiming no longer existent papers, which can safely be ignored istead of crashing.
- Some comments update
- Kwalitee improvements