Upgrade information for The WebDruid 0.5.3

This document is for people in a hurry, who want to
upgrade their system to the latest version of The WebDruid
without read the entire manual :-)

For the others who want to learn a bit more about what they can do with
the webdruid, they should definately read carefully the README file.

You must follow instructions in the appropriate sections below.
Let's suppose you have release A, and want to upgrade to release C.
You must follow steps in 'Upgrading from A to B' AND 'Upgrading from B
to C'.

* UPGRADING FROM WEBDRUID 0.5.2 TO 0.5.3

Nothing required.

* UPGRADING FROM WEBDRUID 0.5.1 TO 0.5.2

Nothing required.

* UPGRADING FROM WEBDRUID 0.5.0 TO 0.5.1

The WebDruid 0.5.1 uses True Type fonts to draw its strings on the charts.
You should install the FreeType2 font rendering library, and make sure that
the gd library is built with FreeType2 support, otherwise compiling the WebDruid
will fail.
You should also download and install the FreeFonts package
in /usr/share/fonts/truetype/freefont/ (See INSTALL for where you can get these fonts).

* UPGRADING FROM WEBALIZER 2.01-10 TO WEBDRUID 0.5.0

Important note : if you're trying to upgrade and are using the webalizer
for http proxy or ftp calculations, you'd better stick with your current
version of the webalizer, as the webdruid doesn't support those
formats anymore!!

Many things have changed, but don't worry!!
Only a miminum pain is required to upgrade:

Here is what you need to check (in the order):

 - Executable names has changed, so that both the webdruid and the webalizer
   can be installed easily on the same computer.
   You should check your scripts and replace the executable name.
   webalizer is now  ... guess ..... webdruid !  :o)
   webazolver is now ... guess ..... webdruid-resolve
            (OK - this one whas not that easy... ;-) )

 - If you're using the default /etc/webalizer.conf, move it to
   /etc/webdruid/webdruid.conf

 - The following keywords have been removed : HistoryName and IncrementalName
   If you did use the HistoryName previously, you should move your history file
   to the output directory, and rename it 'webalizer.hist'

 - The search engines support has been completely rewritten. As such the
   SearchEngine keyword is not used anymore. If you used this keyword,
   this time you should definately see README.

 - If you are using incremental mode, the data format for the webdruid 0.5.0
   is incompatible with previous versions, so you should re-process from the
   beginning of the month, or better, switch to this new release at the very
   beginning of a new month. THE LATTER MEANS THE LAST RECORD PROCESSED BY
   WEBALIZER MUST BE AS CLOSE TO THE BEGINNING OF THE MONTH AS POSSIBLE.

 - To take full power of the webdruid, you may consider to install the graphviz
   package (http://www.graphviz.org). In fact we just use the 'dot' utility.
   It will allow you to produce nice graphics showing you what people tend to
   do on your site.
