Icedtea 1.2, needed yum line

[Francis Kung]

Hi Thorbjørn,

> I needed some additional packages installed than mentioned in the 
> release docs.  The yum command that got icedtea to build, was:
> 
> yum -y install /usr/bin/ecj mercurial cups-devel lesstif-devel 
> libXp-devel libXtst-devel libXi-devel xalan-j2 xerces-j2 libXt-devel 
> libgcj freetype-devel gcc gcc-c++ wget java-1.5.0-gcj-devel alsa-lib-devel
> 
> Hopefully this helps somebody :)

Thanks - I've updated the INSTALL file and wiki with this information.

Regards,
Francis