Add missing setters for pageSizeW and pageSizeH
Width/Height set/get tests
Update pageSizeW and pageSizeH docs
Merge pull request #379 from spikex/master

Add missing setters for pageSizeW and pageSizeH
Revert "Add missing setters for pageSizeW and pageSizeH"
Merge pull request #389 from PHPOffice/revert-379-master

Revert "Add missing setters for pageSizeW and pageSizeH"