Correct FactorTest
 deduplication test needed to check for order
Change to matchers due deprecation warning
Update .gitignore
Remove .metadata directory
Merge pull request #152 from bruttenberg/DEV2.2

Added evidence computation to BP.
particle filter prob evidence
Merge pull request #151 from gtakata/DEV2.2

Correct FactorTest
particle filter log space #137
#147

Use logarithms to compute probability of evidence
#131

Use approximate method to compute binomial density for large number of
trials
Revert "#131"

This reverts commit e872fa15ab4f80155c344af40b0591058542a5a7.
Merge pull request #161 from mhoward2718/DEV2.2

#147
#131

Use approximate density method for large number of binomial trials
particle filter probEvidence #137
Merge pull request #163 from AliOC/DEV2.2

Dev2.2
Merge pull request #162 from mhoward2718/DEV2.2

#131
Exposed the getElementByReference function in ElementCollection. This is
a temporary fix for issue #154 that should not be a permanent solution
but helps right now