RandSRG- preliminary version
RandSRG can now work. Different from orig design, aggregator is remove out  from the RandSRG
Merge pull request #7 from zhenzonglei/randrg

RandSRG
complete  the aggregator
complete  the aggregator
modify the RandSRG test
Merge pull request #10 from zhenzonglei/aggregator

Aggregator
xxx
Merge branch 'master' of github.com:BNUCNL/region-growing-froi
refactor Seeds, RandSRG, similarity_criterion
refactor Seeds, RandSRG, similarity_criterion
refactor Seeds, RandSRG, similarity_criterion
Complete RandSRG. Both random seed and  random neighbor are supported now
New tests for Random SRG
Merge pull request #11 from zhenzonglei/RandSRG

Rand srg
add compute boundary for Region
add testAdaptiveSRG and give a implementation of Optimizer
Refactor the RandSRG and AdaptiveSRG. from inheritance to embedding
Merge pull request #12 from zhenzonglei/adaptiveSRG

Adaptive srg
Merge branch 'master' of github.com:BNUCNL/region-growing-froi

Conflicts:
	algorithm/regiongrowing.py