Fixes

Some fixes to templates, mostly having to do with datatree anchors:
- Deletes some old templates that are no longer referenced.
- Overrides ProgramCreationForm.save() and makes it set Program.name and Program.url so that name can be referenced in a program creation template, replacing an old reference to anchor.
- Replaces some uses of program.anchor.parent.name and program.anchor.parent.friendly_name with program.program_type.
- Replaces some hard-coded URLs with anchor references with program.getUrlBase.
- Fixes some survey and class anchor references.