Travis Report Fixes

warn_unused_result shielding, dropped unused variables and fixed battle_calc_return_damage delay behavior (pointer was unchaged; resulting in the var afterwards always as 0)
Special Thanks to Xgear.

Signed-off-by: shennetsind <ind@henn.et>
Fixed Bug #7497

Special Thanks to shenhuyong, kyeme.
http://hercules.ws/board/tracker/issue-7497-iditem-idq/

Signed-off-by: shennetsind <ind@henn.et>
Merge branch 'master' of https://github.com/HerculesWS/Hercules into ghbb