re: #173/assembla Batch upload stops after 9th image uploaded

* includes/Adapters/Php/MappingPhpAdapter.php
  - changed use of Title::makeTitleSafe to \GWToolset\getTitle()
    and \GWToolset\stripIllegalTitleChars()
  - added line breaks to lines > 100 characters

* includes/Handlers/UploadHandler.php
  - changed use of Title::makeTitleSafe to \GWToolset\getTitle()
    and \GWToolset\stripIllegalTitleChars()

* includes/functions/functions.php
  - adjusted comments

Change-Id: I9d58f094b37b961dfee6073218cf0e5d761a4599