- treat invalid byte ranges as described in rfc2616-sec14
- provide compatibility with nsf 2.0b6, which has "-noinit" removed
* overworked db-abstraction layer with support for dbi_*
* dbi_* support is per default deactivated, can be activated via
  e.g. setting  ::acs::preferdbi to 1 in 0-acs-init.tcl
* bump version number to use dependencies for packages, using the new interface