Rename morphRetriever to fakeMorphRetriever

That's what it really is anyway.
Allow multi retrievers in morph plugin
Fix path of configurator spec
Add configurator specs
Refactor configurator.getServices
Remove obsolete DI in fakeMorphRetriever
Add ngResource to arethusa.morph
Don't fall when morph encounters no initial form
Bring back old tokenRetriever

Use it additionally to the treebankRetriever.
We don't want to spam DoS attacks on the bsp server during development
of this service...
Add toAry fn to arethusaUtil
Show lemma information for morphology
Add arethusaUtil.inject
Start bsp morph retriever service
Handle asynchronoys request better in morph
Add some remnants in index
Add an origin to different morph forms
Minor fixes in morph service
Not correctly parsed, but running bsp service
Add method to generate an empty postag
Update morphFormCreate directive