The logic of the DuplicateWorkVoter moved into separate *Comparators,
special key generator class, better tests
A configuration for the WorkYearComparator
comment amendment
mapred.child.java.opts in conf
Merge remote-tracking branch 'upstream/master'

Conflicts:
	disambiguation-work/src/main/java/pl/edu/icm/coansys/disambiguation/work/DuplicateWorkDetectMapService.java
	disambiguation-work/src/main/java/pl/edu/icm/coansys/disambiguation/work/DuplicateWorkVoter.java
	disambiguation-work/src/main/java/pl/edu/icm/coansys/disambiguation/work/DuplicateWorkVoterConfiguration.java
	disambiguation-work/src/test/java/pl/edu/icm/coansys/disambiguation/work/DuplicateWorkVoterTest.java
improved comment on WorkKeyGenerator + reduce log time in msec
corrected the bug of indefinite recursive invocation of the reduce
process method
Merge remote-tracking branch 'upstream/master'
Merge pull request #131 from lukdumi/master

A big refactor, structure and efficiency improvement