more work on sampleCollapse
Merge branch 'master' of https://github.com/purcaro/bib-cpp

Conflicts:
	src/seqTools/objects/collapseObjects/collapser.hpp
	src/seqTools/objects/collapseObjects/sampleCollapse.cpp
	src/seqTools/objects/collapseObjects/sampleCollapse.hpp
	src/seqTools/objects/seqObjects/sampleCluster.cpp
	src/seqTools/objects/seqObjects/sampleCluster.hpp