.emacs_d/lisp/bhj-autoloads.el: add enter-emoji as autoload
.emacs_d/lisp/bhj-set-key.el: can insert emoji using this key
.emacs_d/lisp/emojis.el: can enter emoji using emacs
bin/.android-set-outdir: do not use link, use mount, try to fix make hang
bin/android-make: mount the out dir

Signed-off-by: Bao Haojun <baohaojun@gmail.com>