Fix a TODO in TestGetSeries
Merge pull request #17 from gsalgado/vp

Fix a TODO in TestGetSeries
Handle errors in branchOrder test code
Merge pull request #18 from larshesel/vp

Handle errors in branchOrder test code
Move ExistsSeries to internal_test.go
Merge pull request #20 from gsalgado/vp

Move ExistsSeries to internal_test.go
Added empower function and test