redone edits on new TaggerServiceImpl.java for GF4 compliance
Merge branch 'gf4' of https://github.com/qcri-social/AIDR into gf4
redone changes to new TaggerServiceImpl.java for GF4 compliance
Conflicts:
	aidr-manager/src/main/java/qa/qcri/aidr/manager/service/impl/TaggerServiceImpl.java