CLI: Send error output to stderr #24
Merge pull request #31 from maximkou/clie_error_output_stderr

CLI: Send error output to stderr #24
fixed indentation for #31
Improved description about WHY?
fixed typos
licensing and acknowledgement

fixes #34
Update README.md
fixed typo
Codstyle fixes. Yii2 conventions used.
Excessive variables declaring/setting removed.
Merge pull request #37 from maximal/codestyle

Codstyle fixes
phpdoc
added test case
adjusted testcase
added testcase