Fix author id's, New Jekyll apparently uses a full path for id's.
Fix author id's, New Jekyll apparently uses a full path for id's.

jericson/stack-blog,StackExchange/stack-blog,dgrtwo/stack-blog,dgrtwo/stack-blog,StackExchange/stack-blog,jericson/stack-blog,dgrtwo/stack-blog,StackExchange/blog,dgrtwo/stack-blog,jericson/stack-blog,StackExchange/stack-blog,dgrtwo/stack-blog,StackExchange/blog,StackExchange/stack-blog,StackExchange/blog,StackExchange/blog,StackExchange/blog,jericson/stack-blog,jericson/stack-blog,StackExchange/stack-blog