Forums / Cotonti / General / What to do with one month of spare time?

Since I'm almost done with my Bachelor study of Mediatechnology (my final presentation is this friday) and the job I've accepted will start on August 1st, I'll have one month of spare time. I intend to spend some of this time working on Cotonti projects, but I'm undecided on what projects to do so I'd like to know your opinion.

I have several projects that I've started in the past but never really completed, including Advanced File Manager (PFS replacement), Share (a framework for sharing things like pages/files/etc. between users), Notifier (automated email notifications; needs an upgrade to Siena) and Find (complex search engine for Cotonti).

What should I work on:

• Cotonti Siena core, to make v1.0 even more awesome.
• Documentation / Articles
• Advanced File Manager module
• Share plugin
• Notifier plugin + HTML emails for Cotonti
• Improving Find module or implementing Sphider for Cotonti
• An e-commerce module
• Improvement of Forums module
• A new theme from scratch
• A theme based on Bootstrap (to work alongside Admin Bootstrap)
• A mobile theme based on jQuery Mobile
• A public API for Cotonti + API framework
• A centralized extension repository

Something else? Let me know.