- JavaContextResolver was created to provide resolution for class_name
  and package_delcaration variable but similar ones exist
  - Use primary_type_name variable instead of class_name
  - Use enclosing_package variable instead of package_declaration
- Remove unnecessary line_selection variable from 'java-empty' templates

Change-Id: I2595b5143a8193becd7cd02e8a8925f788c7e471
Signed-off-by: Roland Grunberg <rgrunber@redhat.com>