2.2.1 release
2.2.1 release

Regis25489/hexo,will-zhangweilin/myhexo,HiWong/hexo,hanhailong/hexo,wflmax/hexo,hugoxia/hexo,allengaller/hexo,kywk/hexi,liuhongjiang/hexo,hackjustu/hexo,wyfyyy818818/hexo,leikegeek/hexo,Jeremy017/hexo,GGuang/hexo,chenzaichun/hexo,beni55/hexo,Gtskk/hexo,jp1017/hexo,nextexit/hexo,G-g-beringei/hexo,xushuwei202/hexo,initiumlab/hexo,wenzhucjy/hexo,lookii/looki,amobiz/hexo,zhoulingjun/hexo,zhangg/hexo,tzq668766/hexo,zoubin/hexo,haoyuchen1992/hexo,sailtoy/hexo,xiaoliuzi/hexo,SampleLiao/hexo,lknny/hexo,glabcn/hexo,imjerrybao/hexo,meaverick/hexo,liukaijv/hexo,DanielHit/hexo,dreamren/hexo,elegantwww/hexo,biezhihua/hexo,delkyd/hexo,luinnx/hexo,cjwind/hexx,littledogboy/hexo,chenbojian/hexo,leelynd/tapohuck,magicdawn/hexo,registercosmo/hexo,oomusou/hexo,Carbs0126/hexo,jonesgithub/hexo,sundyxfan/hexo,BruceChao/hexo,iamprasad88/hexo,Bob1993/hexo,zongkelong/hexo,DevinLow/DevinLow.github.io,ppker/hexo,hexojs/hexo,crystalwm/hexo,fuchao2012/hexo,znanl/znanl,xcatliu/hexo,tibic/hexo,hexojs/hexo,ChaofengZhou/hexo,keeleys/hexo,kywk/hexi,karenpeng/hexo,JasonMPE/hexo,0111001101111010/hexo,zhipengyan/hexo,DevinLow/DevinLow.github.io,k2byew/hexo,0111001101111010/blog,kennethlyn/hexo,zhi1ong/hexo,memezilla/hexo,noikiy/hexo,SaiNadh001/hexo,ppker/hexo,wwff/hexo,jollylulu/hexo,HcySunYang/hexo,noname007/hexo-1,dieface/hexo,lukw00/hexo,luodengxiong/hexo,wangjordy/wangjordy.github.io,aulphar/hexo,XGHeaven/hexo,r4-keisuke/hexo,maominghui/hexo,Richardphp/hexo,runlevelsix/hexo,wangjordy/wangjordy.github.io,gaojinhua/hexo,viethang/hexo,logonmy/hexo,zhipengyan/hexo