Save examples results to results folder
Tweak samples and initiate documentation
Doc: Update manual & README.md
Doc: Update manual and changelog
Doc: Writers documentation
QA: Writers tests
Refactor: Change PHPPowerPoint_Shape_Shadow to PHPPowerPoint_Style_Shadow
Refactor: Change PHPPowerPoint_SlideIterator to PHPPowerPoint_Slide_Iterator
PHPMD fixes
Fix build error