Imported page names are too long to be able to recreate the hierarchy

When importing large hierarchies containing large page titles, we cannot run nested page migrator because the final fullname will be way to long (it will be the sum of all the page title leength of the hierarchy)

We would need an option to truncate the page name (without touching the page title).
The algorithm to use is unclear. We could easier use the Confluence ID or provide a length to truncate using a smart truncate algorithm.

Here is a proposal:

• convert special characters to spaces, convert accents, keep only ASCII
• split the title in words
• keep as many words to keep the length under the provided limit
• deduplicate titles (we need a global reference of all the page names generated)