Squashed '7_1_Servomotor/' changes from 373fb15..2ef1ffd

2ef1ffd Update readme.md

git-subtree-dir: 7_1_Servomotor
git-subtree-split: 2ef1ffd3ffc473025b758af4b7195baabf4af6aa
updated subtree 7_1_Servomotor 2013.06.23.17.10