merge mmcm: Remove synchronized from Schema methods.
merge mmcm: Remove synchronized from Schema methods.

https://code.launchpad.net/~mmcm/akiban-server/qp-schema-not-synchronized/+merge/119452
wfxiang08/sql-layer-1,qiuyesuifeng/sql-layer,jaytaylor/sql-layer,jaytaylor/sql-layer,wfxiang08/sql-layer-1,qiuyesuifeng/sql-layer,ngaut/sql-layer,ngaut/sql-layer,relateiq/sql-layer,shunwang/sql-layer-1,jaytaylor/sql-layer,shunwang/sql-layer-1,shunwang/sql-layer-1,relateiq/sql-layer,wfxiang08/sql-layer-1,shunwang/sql-layer-1,qiuyesuifeng/sql-layer,ngaut/sql-layer,ngaut/sql-layer,jaytaylor/sql-layer,relateiq/sql-layer,relateiq/sql-layer,qiuyesuifeng/sql-layer,wfxiang08/sql-layer-1