update latest stable to 1.2.1 in readme
update latest stable to 1.2.1 in readme

indera/alloy,WY08271/alloy,brentonhouse/brentonhouse.alloy,mobilehero/adamantium,WY08271/alloy,jvkops/alloy,mobilehero/adamantium,xavierlacot/alloy,FokkeZB/alloy,bhatfield/alloy,WY08271/alloy,indera/alloy,brentonhouse/brentonhouse.alloy,indera/alloy,xavierlacot/alloy,brentonhouse/brentonhouse.alloy,NadsonFernando/alloy,FokkeZB/alloy,NadsonFernando/alloy,bhatfield/alloy,4talesa/alloy,jvkops/alloy,NadsonFernando/alloy,xavierlacot/alloy,mobilehero/adamantium,bhatfield/alloy,jvkops/alloy,FokkeZB/alloy,4talesa/alloy,4talesa/alloy