Correct search box appearance

remove theme specific style and organize elements.
Fixes encode error for article notification on wall

  The replace used to remove non-breaking spaces was removing part of
  some characters codification. I changed it for \xC2\xA0 which is
  non-breaking space in UTF-8.

(ActionItem2480)
Documentation updates
Install varnish configuration files
Updated varnish documentation file
Review varnish configuration
Minor doc review
Merge branch 'stable'
Paragraph formatting
New HACKING file
minor heading update
Review INSTALL
Spammer logger

Also logging spammer when comment is marked as spam
Removing unnecessary requires
Merge commit 'refs/merge-requests/249' of git://gitorious.org/noosfero/noosfero into merge-requests/249
Fixed test
Merge commit 'refs/merge-requests/256' of git://gitorious.org/noosfero/noosfero into merge-requests/256
Merge commit 'refs/merge-requests/246' of git://gitorious.org/noosfero/noosfero into merge-requests/246

Conflicts:
	public/stylesheets/search.css
Fixed width of search box on profiles
Merge commit 'refs/merge-requests/255' of git://gitorious.org/noosfero/noosfero into merge-requests/255