Search first graphnode from graphnodes in scope

1. Fix function that searches first graphnode to use the current scope
2. Add temporary testcase - this needs to be as short as possible
Complex assoc update test
Merge branch 'master' of https://github.com/DynamoDS/Dynamo into AssocUpdateFix
Refactor util function and test

1. Move function to associative engine utils
2. Remove redundant test
3. Rename complex test
Refactor complex testcases

1. Update testcase results
2. Set test category and defect
For consistency changing category from Failing to Failure

As everyhwere we have marked failed Test Cases as Failure, so chaning the same this project for consistency.
Merge pull request #2317 from junmendoza/updatetestcases

Rename test category Failing->Failure
Merge pull request #2316 from riteshchandawar/FailingToFailure

For consistency changing category from Failing to Failure
Added 2 test cases for MAGN4105 and MAGN847 with 2 .dyn files
Merge pull request #2323 from theanh0512/MAGN4105

Added 2 test cases for MAGN4105 and MAGN847
Merge pull request #2306 from junmendoza/AssocUpdateFix

Assoc update cleanup and added testcases
Mark as failure
Filed bug - http://adsk-oss.myjetbrains.com/youtrack/issue/MAGN-4465
Mark as failure
Update README.md
Merge pull request #2328 from monikaprabhu/RTFBranch2014

Mark as failure
Fix fail category