Building up a .gitignore for IDEA users.
Building up a .gitignore for IDEA users.

hesling/FreeFlow,rantianhua/FreeFlow,predator11/FreeFlow-2-,Cryhelyxx/FreeFlow,qingsong-xu/FreeFlow,Comcast/FreeFlow,zhaochuanTeam/FreeFlow,xiaoyanit/FreeFlow,elevenetc/FreeFlow,phlizik/FreeFlow,tsdl2013/FreeFlow,hanhailong/FreeFlow,letanloc/FreeFlow,hgl888/FreeFlow,dhamofficial/FreeFlow,simple88/FreeFlow,pkexcellent/FreeFlow