Initial commit containing Factor.
commit message

Merge branch 'master' into elimination

:q!
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borts
a the commit.
Merge to get the linkedList change on observedValue.
Started on Factor constructor.
Merge branch 'elimination' of https://github.com/WiteHaze/AI_HW4 into elimination
Debugging Factor constructor
Finished function to sort the variables for elimination.
Added the pointwiseMultiplication function to Factor.java
Implemented sumOut method for Factor.java
eliminationAsk is implemented. Small bug with Factor constructor present.
Fixed the bug concerning the empty factors.
Merge branch 'elimination'
Merging elimination with master.