Reduced memory consumption in WeightValue
Changed package structures.
Changed package structures.
Added OpenHashTable related classes
Added a unit test for OpenHashTable
Changed to use WeightedValueWithCovar instead of WeightedValue for
reducing memory consumption.
Added getAndFreeXXX methods
Added isEmpty()
Modified to use OpenHashTable instead of HashMap for reducing memory
consumption.
Added a newline to EOF
Merge pull request #50 from myui/hotfix/memdiet

Hotfix/memdiet