Setup relation spec test file
Add specs for relation.buildLabel
Add specs for relation.expandRelation
Minor refactor
Init relation plugin in specs
Add relation.mulitChangePossible spec
Add specs for relation.applyMultiChanger
Add specs for relation.selectLabel
Add spec for relation.currentLabels
Add spec for relation.createInternalState
Remove useless configurator injection
Merge pull request #133 from latin-language-toolkit/relation_specs

Relation specs
Use a hardcoded size for relation labels
Merge pull request #136 from latin-language-toolkit/label_placeholders

Use a hardcoded size for relation labels
Setup e2e config
Updating config
Use new data for e2e test.
Start to fix e2e tests.
Use multiple browser and OS configurations on saucelabs
Try to run on multiple browsers in sauce lab