bug: character killer with summons not parsed correct

[tobiasehlert]

Character Lester Padrin
Crushed at Level 416 by Hawker Dashzik, Atestado Di Obto, Dadau Rush, Nadica, Mindubina Lovers, Fogosz, Bino Pally Rox, Seborredelson, Miko Miner and knight familiar of Lekinho Destroyer.

Actual parsing:

{
  "name": "knight familiar of Lekinho Destroyer",
  "player": true,
  "traded": false,
  "summon": ""
}

Expected parsing:

{
  "name": "Lekinho Destroyer",
  "player": true,
  "traded": false,
  "summon": "knight familiar"
}

rel #341

[tobiasehlert]

Created bug-344-summon-killer-parser-issue branch with updated html-testdata and prepared the tests to align as it should be.