adjust emphasize lines property meaning
extract SimpInitialModelProcessor
fix bug of wrong distance function sign
fix setter name
add MFMixerFunctionPack
update tb reference [more Math2D.area()]
add more constructors
add helper operators
start redesign opt module from tb
  + add nlopt linkers
add TriangleMarchingIntegralUnitsFactory
add integrators
add LevelOptModel and a sample factory
add spring configs
add Demo1
add RepetitionBlockParametersCosumer to accelerate inequal constraints
add initOptimizationBus
add mongodb-java-driver dependencey
add MongoDB persists tools