Added proper formating to input.pt
Added a previewpane
Added a preview-view, which generates the preview with the corresponding page template.
Added javascript code for fetching the preview and showing it.
Made the previewpane a bit bigger, so that larger images fit in.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	plone/formwidget/contenttree/input.pt
	plone/formwidget/contenttree/jquery-contenttree/contenttree.js
	plone/formwidget/contenttree/widget.py
try to preserve bad formatting with tabs to facilitate diffing
some pep8
unix file format
following mitchellrj's suggestion: don't fail in case Description is not defined
follow-up on fa49b27 If the tree already exists, we still need to call bindTree to ensure
that the click-handlers are in place
If we filter by portal_type, make sure those portal types are present
in the query, even if they would not appear in the navigation
Merge branch 'upstream-master'
Revert "If we filter by portal_type, make sure those portal types are present"

This reverts commit c5d3abcef9eda32707f2676a21b5a0d7d5e8c815.
Merge remote-tracking branch 'pysailor-master/master'