Spring boot type completions (work in progress).
Save some memory by reusing identical stringw while parsing boot type completions xml file.
Spring Boot External Type Content Assist:
  - allow user to decide cases where more than one way exists to add a type to the classpath.
Various little tweaks to boot external type completions.
Fix focus issue (don't allow keyboard focus to pass to readonly comment).
StyledCommentSection moved to commons
Less verbose labels in the ChooseDependencyDialog
Refactoring: maintype finder algo can be shared with CF tooling.
Merge branch 'boot-type-completions'