Refactor writers
Merge branch 'refactor' into develop
Refactor the new textbox element
Refactor writers and styles
Fix Travis test errors
Fix Travis build error
Fixed a bug in TextBox; addText to a TextBox was treated 'withoutP'.
This is not the expected behaviour
Revert "Fixed a bug in TextBox; addText to a TextBox was treated 'withoutP'. This is not the expected behaviour"

This reverts commit ade740b562793670155d2c081de97265410abdcc.
Fixed a bug in TextBox; addText to a TextBox was treated 'withoutP'.
This is not the expected behaviour
Reactivate PHPMD and fix some rules for textbox
Merge branch 'bug-textbox' of github.com:basjan/PHPWord
Merge branch '#229-basjan' into develop