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 code that is > 100 characters

* includes/functions/functions.php
  ** adjusted some documentation

* includes/Handlers/UploadHandler.php
  ** changed use of Title::makeTitleSafe to \GWToolset\getTitle() and \GWToolset\stripIllegalTitleChars()
  ** created a getTitle() method for shared use of that logic within the class
  ** adjusted some documentation

* includes/Jobs/UploadMetadataJob.php
  ** changed use of error_log() to $this->setLastError()
  ** repositioned validateParams() within the class

Change-Id: I9d58f094b37b961dfee6073218cf0e5d761a4599
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 code that is > 100 characters

* includes/functions/functions.php
  ** adjusted some documentation

* includes/Handlers/UploadHandler.php
  ** changed use of Title::makeTitleSafe to \GWToolset\getTitle() and \GWToolset\stripIllegalTitleChars()
  ** created a getTitle() method for shared use of that logic within the class
  ** adjusted some documentation

* includes/Jobs/UploadMetadataJob.php
  ** changed use of error_log() to $this->setLastError()
  ** repositioned validateParams() within the class

Change-Id: Ib29decb91966160fc2fb7aaf6864da6c33abb063