[1754] Adding tests
[1754] Correct tests
[1754] Correct tests
[1754] Correct tests
[1754] Deleting unnecessary files
Merge branch 'master' of https://github.com/stxnext-kindergarten/presence-analyzer-kgrela into bug_1754

Conflicts:
	src/presence_analyzer/tests.py
Merge pull request #3 from kamilgrela/bug_1754

[1754] Adding tests