Ticket 474: get_doc from adsdata needs 'manipulate=False'
Merge pull request #42 from ehenneken/ticket_474

Ticket 474: get_doc from adsdata needs 'manipulate=False'
Adding pip and adsdata (master git) as a requirement
Pip needs to be higher version
Update README.md
Update README.md
Ticket 452: metrics speedup by total overhaul
Merge pull request #45 from ehenneken/ticket_452

Ticket 452: metrics speedup by total overhaul
bibutils unit test: removed get_citations test
Merge pull request #46 from ehenneken/citation_helper_fix

bibutils unit test: removed get_citations test
The multiple inheritance causes problems for p2.7 - but it is not needed, as fixtures already depend on the unittest.TestCase