[patch] always set the jdk docs target

[Lillian Angel]

Martin Buchholz wrote:
> To clarify some more...
>
> The Sun folk are probably building their own JDK
> not with JDK_UPDATE_VERSION set to 0,
> but completely undefined.
>
> You may freely choose to do things differently,
> but you should be aware that this is a point
> of divergence between IcedTea and "official" JDK.
>
> You might want to consider never defining JDK_UPDATE_VERSION,
> since you will never be issuing "update" releases
> in the sense that Sun uses that term.
>   

The JDK_UPDATE_VERSION  was defined to 0 temporarily. This was added as 
a workaround for many applets that check that the version string 
includes a "_" and a digit. Most importantly, this applet: 
http://www.java.com/en/download/installed.jsp .

Sun has said they are looking into changing the applet to have "smarter" 
vm checks. Eventually, we will go back to undefining JDK_UPDATE_VERSION. 
This is not meant to be a point of divergence between IcedTea and the 
"official" JDK.


Lillian