Set Jekyll version to 1.4.2 in Travis.
Set Jekyll version to 1.4.2 in Travis.

v1.4.3 has a Windows bug.

mazong1123/ratchet-pro,jamesrom/ratchet,zipscene/ratchet,AladdinSonni/ratchet,cslgjiangjinjian/ratchet,Diaosir/ratchet,hashg/ratchet,Joozo/ratchet,vebin/ratchet,youzaiyouzai666/ratchet,aisakeniudun/ratchet,Samda/ratchet,guohuadeng/ratchet,twbs/ratchet,liangxiaojuan/ratchet,twbs/ratchet,coderstudy/ratchet,isathish/ratchet,jimjin/ratchet,Holism/ratchet,youprofit/ratchet,leplatrem/ratchet,AndBicScadMedia/ratchet,artemave/ratchet,ctkjose/ratchet-1,asonni/ratchet,mbowie5/playground2,kujian/web-frame,jackyzonewen/ratchet,arnoo/ratchet,kujian/web-frame,mazong1123/ratchet-pro,tranc99/ratchet,wallynm/ratchet,calvintychan/ratchet,Artea/ratchet,kkirsche/ratchet,kujian/web-frame