Merge pull request #52 from MIPT-Oulu/cutout_and_docs

Made Cutout accept percentages

Docs changes

the lib has been updated to 0.1.7 release

password update

fixed ci requirements for doc building

removal of data copying, usage of python standard random and performa…

…nce improvement

Flip transform fixed and extended. Now allows to perform two-axes fli…

…p, has docs improvements and tests.

pytest version specified

Version fixed.

release version changed to 0.1