bump to 3.0.0-M1
fix scaladoc warning
add javaText to ServiceDescriptor
rename UntypedMetaRecord methods that confusing java
placeholder java for trait/mutable/raw/meta
eliminate service args/result name conflicts
use 3.0.0 branch in plugin
Merge pull request #48 from paperstreet/v3-M1

3.0.0-M1