Move sourcemap handling to after we emit the module updates.
Move sourcemap handling to after we emit the module updates.

sverrejoh/browserify-hmr,sverrejoh/browserify-hmr,royriojas/browserify-hmr,royriojas/browserify-hmr,AgentME/browserify-hmr,AgentME/browserify-hmr,royriojas/browserify-hmr,AgentME/browserify-hmr,sverrejoh/browserify-hmr