added hostname override. Fixes #256.
added hostname override. Fixes #256.

parkhyeonghwa/mtools,yaowenqiang/mtools,devkev/mtools,ces0712/mtools,parkhyeonghwa/mtools,tomzhang/mtools,aerrami/mtools,devkev/mtools,gormanb/mtools,aerrami/mtools,tomzhang/mtools,parkhyeonghwa/mtools,devkev/mtools,yaowenqiang/mtools,gormanb/mtools,rueckstiess/mtools,aerrami/mtools,yaowenqiang/mtools,rueckstiess/mtools,ces0712/mtools,tomzhang/mtools,gormanb/mtools,ces0712/mtools