use improved version from apb, works with parallel/paexec
remove hard DESTDIR and add REPLACE_PYTHON
Update security/ipv6-toolkit from version 1.3.3 to 1.3.4

Changes from previous version:
   * IPv6-host tracking support in the scan6 tool.
   * A new tool, address6, to analyze IPv6 addresses
   * Minor bug fixes
   * PDF manual pages have been removed
   * additional manual pages

pkgsrc changes:
   * patch to avoid "uninitialised variable" warning from compiler
Note update of security/ipv6-toolkit to 1.3.4