- use two handles for lifeline's lifetime to mimick line behaviour   and reuse   - gaphas' line bound box calculation and   - gaphor's line connector adapters
- use two handles for lifeline's lifetime to mimick line behaviour
  and reuse
  - gaphas' line bound box calculation and
  - gaphor's line connector adapters


git-svn-id: 80d932a80928324f4d3d71af042e652e41ead033@1522 a8418922-720d-0410-834f-a69b97ada669

amolenaar/gaphor,amolenaar/gaphor