merge SytzeH: clean up .new files if equal
merge SytzeH: clean up .new files if equal

Merge pull request #1499 from SytzeH/sql-layer/newConfigFiles
https://github.com/FoundationDB/sql-layer/pull/1499

shunwang/sql-layer-1,ngaut/sql-layer,qiuyesuifeng/sql-layer,ngaut/sql-layer,relateiq/sql-layer,wfxiang08/sql-layer-1,qiuyesuifeng/sql-layer,shunwang/sql-layer-1,shunwang/sql-layer-1,qiuyesuifeng/sql-layer,ngaut/sql-layer,relateiq/sql-layer,qiuyesuifeng/sql-layer,relateiq/sql-layer,wfxiang08/sql-layer-1,jaytaylor/sql-layer,relateiq/sql-layer,jaytaylor/sql-layer,ngaut/sql-layer,jaytaylor/sql-layer,jaytaylor/sql-layer,wfxiang08/sql-layer-1,shunwang/sql-layer-1,wfxiang08/sql-layer-1