Compile libvcl with the new dynamic-destination director code.

Signed-off-by: Marian Marinov <mm@yuhu.biz>
include/vrt.h: Added the datastructures used in the generated VCL.

Signed-off-by: Marian Marinov <mm@yuhu.biz>
Added the new dynamic-destination director functionality to varnishd.

Signed-off-by: Marian Marinov <mm@yuhu.biz>
Fixed the build system so varnishd is compiled with the dynamic-desctination director.

Signed-off-by: Marian Marinov <mm@yuhu.biz>
log_local_address changed to on by default.

We need this for the dynamic-destination director to work correctly.

Signed-off-by: Marian Marinov <mm@yuhu.biz>