Add delayed thread start to avoid fork issue
Add delayed thread start to avoid fork issue

If the request thread is started too early before haka forks, it will
not correctly work.

LubyRuffy/haka,haka-security/haka,nabilbendafi/haka,Wingless-Archangel/haka,lcheylus/haka,lcheylus/haka,haka-security/haka,nabilbendafi/haka,nabilbendafi/haka,Wingless-Archangel/haka,lcheylus/haka,haka-security/haka,LubyRuffy/haka