Support Emacs 27

1. Support early init-file in Emacs27.
2. Fix title color while changing themes on mscOS.
3. Improve ace-window. Remove switch-window and winum.
4. Use shackle instead of popwin.
5. Use amx instead of smex.
6. View last popup buffer (bind to "C-h z").
7. Add: daemons - manage system services.
8. Add: rmsbolt - A compiler output viewer.
9. Other improvements.