Moving js from php class to a separate file
Little explanation for previous commit
Coding standards
Do not try to register settings on every admin_init
Do not try to register settings on every admin_init. Pass 2
Implemented sanitize callback
Remove settings_errors call from example class, otherwise it'll print notices twice
Reverting to inline js
Reverting admin_init hook
Preserve spaces indentation
Merge pull request #10 from rinatkhaziev/master

Sanitization callback for field