0.4.0

Added

• Added generation of arrays of values without nesting by @andrey-helldar in #25
• Added tests for real feeds by @andrey-helldar in #22

Changed

• Code duplication is removed by @andrey-helldar in #24
• Improved work with an array of elements by @andrey-helldar in #26
• Working with files is put into a separate class by @andrey-helldar in #23

Fixed

• Fixed error filling the footer by @andrey-helldar in #21