Merge upstream version 0.6

... including debian/changelog entry.

This is a merge of tag 'mod_proxy_msrpc-0.6' into debian/experimental

* tag 'mod_proxy_msrpc-0.6':
  Add support for "oldie" kernels
  Make msrpc_rts_get_virtual_channel_cookie() data representation (endianess) aware
  Make msrpc_rts_pdu_get_command_name() data representation (endianess) aware
  Make msrpc_pdu_get_rts_pdu() data representation (endianess) aware
  Make msrpc_rts_pdu_len() data representation (endianess) aware
  Fix some variable types
  First changes for adding big endian support