Keep: [U済] CLayoutMgrクラス整理
Patches#731


git-svn-id: svn://svn.code.sf.net/p/sakura-editor/code/sakura/trunk@3435 f7ce1907-e4c7-47ca-9f76-12c87ed2c91c
Keep: [U済] CEditWndクラス整理
Patches#742


git-svn-id: svn://svn.code.sf.net/p/sakura-editor/code/sakura/trunk@3436 f7ce1907-e4c7-47ca-9f76-12c87ed2c91c