revert to wicket 6.8.0 becuase cdi integration fails
Some cosmetic changes

* Punctuation, removing space before exclaimention mark
* Completing Persian translation
* Changeing web app icons per original art work
* Fixing error on custom theme and adding indention to custom CSS
Merge pull request #386 from ebraminio/master

Some cosmetic changes
Added order parameter to 'next' page
Merge pull request #388 from Murray65536/master

Choose reading order when using 'next' page
choose bookmarklet reading order
propagate exception message
simpler mark as read icon
trim empty headers to null (fix #378)
bookmarklet help styling
remove www from normalized url
feedburner special handling for normalization
cache unread count
continue with normalization even when the canonicalizer returns null