share more code.
Change pxelinux directory setup to match debian installer
Change syslinux templates to use {$VAR} syntax so the
templates are easier to read
Remove etch support for syslinux, since INCLUDE syntax
is not available in etch syslinux v3.31
A new common template called help.cfg has been included to avoid help
keys to be duplicated while prompt.cfg has been changed to be specific
to each mode since it has different requirements for initial text to
be displayed.
Other minor fixes were also been done during the spliting and then
included on this patch too.
Daniel Baumann
Jesse Hathaway
Otavio Salvador