add authors and new blog urls to redirect mappings
add authors and new blog urls to redirect mappings

lowtalker/sagan,yhj630520/sagan,seoilhyun/sagan,garylgh/sagan,spring-io/sagan,andriykonoz/sagan,yhj630520/sagan,gregturn/sagan,lowtalker/sagan,seoilhyun/sagan,dsyer/sagan,dharmaraju/sagan,amit-siddhu/sagan,dlizarra/sagan,mbateman/sagan,rwinch/sagan,dvaughn555/sagan,TabberGit/sagan,martinlippert/sagan,martinlippert/sagan,BHASKARSDEN277GITHUB/sagan,martinlippert/sagan,dharmaraju/sagan,dkushner/sagan,dkushner/sagan,BHASKARSDEN277GITHUB/sagan,martinlippert/sagan,dsyer/sagan,dvaughn555/sagan,seoilhyun/sagan,seoilhyun/sagan,rwinch/sagan,garylgh/sagan,andriykonoz/sagan,spring-io/sagan,dkushner/sagan,eonezhang/sagan,vizewang/sagan,dlizarra/sagan,mbateman/sagan,yhj630520/sagan,dsyer/sagan,dlizarra/sagan,dsyer/sagan,gregturn/sagan,BHASKARSDEN277GITHUB/sagan,vizewang/sagan,eonezhang/sagan,eonezhang/sagan,andriykonoz/sagan,dkushner/sagan,spring-io/sagan,eonezhang/sagan,dvaughn555/sagan,BHASKARSDEN277GITHUB/sagan,gregturn/sagan,dlizarra/sagan,vizewang/sagan,dharmaraju/sagan,TabberGit/sagan,TabberGit/sagan,amit-siddhu/sagan,amit-siddhu/sagan,lowtalker/sagan,mbateman/sagan,vizewang/sagan,lowtalker/sagan,andriykonoz/sagan,dharmaraju/sagan,garylgh/sagan,dvaughn555/sagan,spring-io/sagan,rwinch/sagan,yhj630520/sagan,rwinch/sagan,mbateman/sagan,TabberGit/sagan,garylgh/sagan,amit-siddhu/sagan