converted RMDir back from SHFileOperation to the good old manual method

- RMDir can now be used with both /r and /REBOOTOK
- RMDir /r no longer leaves lots of files behind if one file removal failed
- The plug-ins directory is now always deleted, if not immediately, then after reboot
- RMDir /r prints a detailed log of its actions


git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@3597 212acab6-be3b-0410-9dea-997c60f758d6

Source/exehead/Main.c

@@ -278,6 +278,6 @@ void NSISCALL CleanUp()
 #endif
 #ifdef NSIS_CONFIG_PLUGIN_SUPPORT
   // Clean up after plug-ins
-  doRMDir(state_plugins_dir, 1);
+  myDelete(state_plugins_dir, DEL_DIR | DEL_RECURSE | DEL_REBOOT);
 #endif // NSIS_CONFIG_PLUGIN_SUPPORT
 }