Problem: resolve_dependency always warns for custom 'use' in project
Solution: only warn if the required properties are not defined
Incidental: Use "template 0" in zproject_projects.gsl for easier editing
Problem: no newline at end of file
Solution: add newline
Whitespace fixes
Merge pull request #54 from jemc/custom_use

Problem: resolve_dependency always warns for custom 'use' in project