Directory multiple file input src and multiple file out differences

These commands all generate different results
```
quicktype --src ./src/*.ts --lang java --out ./dist
quicktype --src ./src/*.ts --lang java --out ./dist/*
quicktype --src ./src/*.ts --lang java --out ./dist/library
quicktype --src ./src/*.ts --lang java --out ./dist/library/*
quicktype --src ./src/*.ts --lang ts --out ./dist/*
quicktype --src ./src/*.ts --lang ts --out ./dist/index.ts
```

Differences:
1. Without `/*` files are outputted in the parent directory.
2. Sub-directories are not created automatically e.g. `library`
3. Using `--package com.app` with Java does not generate the java directory structure
4. `--lang java` can generate multiple separate files, but `--lang ts` does not work, only can do a single file

Wondering if these are bugs or intended functionality?
If intended functionality, could this be documented?