Removed testes from RegressionTests and added them to BugTests

As we are adding all defect related test cases to BugTests.cs so moving them from RegressionTests.cs so that all test will be at same location.

<h4>Reviewer</h4>
- [ ] @Randy-Ma 

<h4>Merge this to</h4> 
- [ ] Revit2015

All recently test cases are passing on latest master.
![image](https://cloud.githubusercontent.com/assets/5109531/5224577/cead1078-7711-11e4-9a73-78cdd995c1fc.png)