Merge pull request #8 from yoanm/feature/slip-unit-test

Feature/slip unit test
Adding colspan and finally do not exposed Slot object
[twgit] Init feature 'feature/bc-go-function'.
Merge remote-tracking branch 'origin/dev-master' into feature/bc-go-function
Change go function parameters
Merge branch 'feature/bc-go-function' into feature/colspan
Fix #10
Merge branch 'feature/bc-go-function' into feature/colspan
add colspan and test