Upgrade tests: mock mal responses, refactor code base to testable chunks

[pushrbx]

Instead of going to the MAL server for response there should be a downloaded html file which would be used to do the tests on. The html file can should be updated monthly.

Possible solutions:

• Caching proxy: https://github.com/CompileInc/cappy
• static html files

Also it would be ideal to refactor the code to have testable units and avoid bugs like #25 and #26 .

[pushrbx]

tests now run through a caching proxy (squid) 57a4133