Merge pull request #27 from wosiu/master

workflow
Merge branch 'master' of git://github.com/pdendek/CoAnSys
Merge pull request #28 from wosiu/master

wf fixed
Merge branch 'master' of git://github.com/pdendek/CoAnSys
Merge branch 'master' of https://github.com/wosiu/CoAnSys
disambiguators calc affinity from O(n^2) to O(n log n) + CoAuthors.. bugfix + tests