lighttpd 1.4.29: rename index.html to avoid clashes with DL_DIR
As Martin Jansa pointed out before, bitbake will silently peek in DL_DIR before FILESPATH and use files from there if found.
The failure mode for lighttpd involves a 404 redirect placing index.html into DL_DIR, which will end up in the lighttpd packages. In my specific case iproute2 hit the linuxfoundation 404 redirect so lighttpd.ipk now serves the linuxfoundation frontpage :)
