BL-513: about:blank is causing the Pages panel to not update on Linux
BL-722 Adjust buttons to bottom of dialog
BL-705: Delete pages we don't want to generate PDF for

(in the special DOM we create for PDF generation,
instead of hiding them)
Merge pull request #128 from BloomBooks/deleteHiddenPagesForPdf

BL-705: Delete pages we don't want to generate PDF for
BL-482: make TemplatePagesView HTML instead of ListView

This fixes one instance of the problem of list views's thumb sticking
when a gecko browser is also visible.
Merge pull request #133 from JohnThomson/templatePagesViewHtml

BL-482: make TemplatePagesView HTML instead of ListView
Merge pull request #137 from gmartin7/BL-722PageDeleteDlg

BL-722 Adjust buttons to bottom of dialog
Merge pull request #136 from phillip-hopper/BL-513

BL-513: Navigating to "about:blank" is causing the Pages panel to not update on Linux