Added release make target.

This target builds resulting PDF file and archive files with source codes.
Several typos fixed
Added dot after section number and modified algorithm caption style.

Adding the dot is in line with Polish typography style and
captions of algorithms are now more like captions used below figures.
Use em-dash.
Added short description of zRam et al.
Use small caps for acronyms.
Small typos, grammar and style fixes.
LICENSE added.