ignore the evervim token setting-file.
1. switch folding with <space> .
2. enable <F7>, <F8> for switch menu bar and toolbar.
1. enable folding mode. 2. move view, backup dir to /tmp.
為避開 plugin 覆寫 hotkey 部份，故於最後再次讀取 keymap 設定。
add evervim plugin and keymap.