reference parsing error handling
oozie-maven-plugin moved from dependencyManagement to pluginsManagement
Fixed bugs (empty if statements).
Fixed issue reported by sonar: Method invokes inefficient Number constructor; use static valueOf instead.
Fixed issue reported by sonar: Bad practice - Random object created and used only once.
Fixed bug in countF1.
Cosmetic changes.
Merge pull request #128 from matfed/master

Citation parsing error handling
Oozie workflow for keywords-extraction
Merge branch 'master' of git://github.com/CeON/CoAnSys