Update upload_maxsize system setting to value from upload_max_filesize, on new install.
[#9072] Set upload_maxsize to php upload_max_filesize value on install

Merge remote-tracking branch 'TheBoxer/refactor-9072' into refactor-9072

* TheBoxer/refactor-9072:
  Update upload_maxsize system setting to value from upload_max_filesize, on new install.

Conflicts:
	setup/includes/new.install.php
[#9072] Set upload_maxsize to php upload_max_filesize value on install

Merge branch 'refactor-9072' into develop