Error messages
Tag revamp:
  tags are now wiki
  title read from wiki_revision
  opinions apply to tags, too
Bugs fixed:
  tags were created twice in create.php
  index page views were not counted
Link to github project in footer with correct style
Edit and create preview
BBCode [vimeo]
Not logged in error beautified
New version mismatch edit error message
Diff tests
More htmlentities protection
Image drop shadow
Bugs fixed:
	create did not work for opinion about homepage
	create had cosmetic problems with tags
	create had a bad SQL request
	better handling of preview (no more fields lost)
	better handling of empty fields (title cannot be empty)
	better handling of unchanged fields (if no change, no new version)
	link to new opinion in index was malformed
Community wiki
Versions diff
True logarithmic evaluation of difficulty.
History -> Histórico
SQL-Injection safe searches
More tests of magic quotes status
Removes debug echos
Fixed preview bug in create, edit
Fixed history bug for homepage
Fixed opinions bug for homepage
More htmlentities
v1.3