Tidy up PHP short tags.

Catch a lot of old URL's and update them. Also remove a couple of old files
that aren't used.

i-scream is now licensed under the GPL. I've added the GPL headers to every
source file, and put a full copy of the license in the appropriate places.
I think I've covered everything. This is going to be a mad commit ;)

Now works nicely when a report is accessed without necessarily existing.

The web directory is now specified in the config file

Date listings can be produced from a directory that is not a subdirectory
of the current directory (although it will still need to be web-visible
for graphs to be viewed.)

Moved the configuration to an external file.

Moved the historical reports directory, as the root shall now need to
accommodate realtime reports.

Fixed the problem of minFileSize being out of scope in a call to a
function.  Fixed this by passing it in the function call, rather than
making an icky global variable.

*** empty log message ***

The chart data file name can also be specified within the configuration.
The method used to submit the form may als obe configured - at this
current moment in time, this should only really be set to either "POST"
or "GET".  GET sends the form with the parameters specified in the query
string (at the end of the URL).  POST sends them over HTTP without being
displayed in the URL.  We shall stay with the GET method for now -
although it produces rather ugly, long URLs in the browser, they are on
the other hand quite handy because you can then copy it and email the URL
to somebody to show them are particular chart and say something like,
"ooh, what happened to raptor there?"

The file that is included to obtain the minimum and maximum y-axis scales
is in the configuration.

The HTML footer filename is also part of the configuration.

Colour of separator lines may now be configured.  This works only in newer
browsers, however, the colour is not crucial to the operation of the
reports and they thus work (and look) fine even in Netscape 3.

Can now change a single setting to move the reports directory.

Preparations to make the whole file more configurable.

Previous selections on the machine_name and report drop down lists are
now remembered!

The data list now stroes 20 of the most recent dates.

The 'browse other dates' list is now sorted in reverse order so that the
user does not hae to scroll down far to see the latest reports.

Left menu is top aligned, other dates appear in a list and the dropdown
boxes now have an empty default value.

Include file for the bottom of the historical reports page.

Now uses the 24 hour scale beneath the graph, er I meant Chart.

A PHP script to provide a drop-down selection of the previous day's reports.  Also provides links to the other reports for previous
days.