add think.d.ts
add think.d.ts

maxzhang/thinkjs,75team/thinkjs,maxzhang/thinkjs,thinkjs/thinkjs,akira-cn/thinkjs,75team/thinkjs,75team/thinkjs,snadn/thinkjs,maxzhang/thinkjs,akira-cn/thinkjs,akira-cn/thinkjs,Qihoo360/thinkjs