Fixed getNumbetOfAttribute and All test passed. 
+ Created private method extractAttribute.
Fixed getNumbetOfAttribute integrated in master. 
All test passed.
+Add new Test for getNumberOfAttribute.
Fixed getNumbetOfAttribute integrated in master. 
All test passed.
+Add new Test for getNumberOfAttribute.
Fixed package metrics and all test passed
+ Fix ClassMetrics:
   -Optimized loop attribute search
+ Fix HeadMetrics:
   -extractLibrary()
   -extractImports()
+ Fix MethodMetrics:
   -Refactor complexity
Merge origin/FixMetrics