ask to create docset dir
Merge pull request #21 from areina/create-docset-dir

ask to create docset dir
Merge branch 'master' into multiple-docset-formats
Change ZDASH sql select query.

Get the ZTYPENAME column.
Add a function to compose the url for a search result.

- Extract the code to a function.
- In ZDASH docsets, we must join the anchor with the filename.