Avoid spurious mamifestr mismatches in the regression tests.

Required by the previous change.
Revert "Create default ignores under the right name!"

All regression tests pass at this revision.
Redo cerreating he defaults file under its right name.

Required a test rebuild.
NEWS update.
Slightly better check for existing .gitignore.
Documentation polishing.
Version bump for 1.14 release.