- Made commentor URLs add http:// if missing

20070723 Version 1.60:
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(By kalkin)

- rewrote the botfilter. Now it's smarter.
- the graphs can be maximal 200px large
- the bar colors are now relative.

20070121 Version 1.50:
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(By kalkin)

- added lots of bots
- now the plugin just count each ip as an visitor at this day, not evry refresh

Version 1.40:
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(By Shrikee / Arnan)

- added a database table which holds daily stats.
- 2 graphs which use the data in the above table
- rewrote the bots filter
- added a config option to show only visitor stats or show everything (post counts and such)
- option to enable or disable the bot filter
- fixed the referer register. They werent added in the database, now they are
- if either $useragent, $referer or $remote_addr is empty or unknown its set to unknown.
