Computer descriptions

* Make a database table describing computer data (id, opsystem, harddisksize, memorysize, displaydiagonal). Show data to web page and give possibility add data via web.
* Make links to sort data by columns.
* Only registered and logged in users can add data, others can only see and sort.


Dancing pairs

* Make database table for people (username, pw_hash, gender, isfree, partnername). Users can log in and log out.
* Logged in user see all free opposite gender people names. When clicks to name, both marked as dancing partners (partnername links to partner user name).
* Logged in users can finish dancing partnership (partner names will empty again) and choose new partners. Sepparate page show active dancing pairs.