add install note
change some pacakges from el-get to elpa
Merge branch 'master' of ssh://fireinice.3322.org:8922/home/zigler/gitDepot/emacs

Conflicts:
	batch_install_elpa.el
	setup/el-get-all.el
增加ruby支持
elpa自动安装
add support for ruby
add projectile support
ruby support