init best practice wiki page
Update umeng_update_best_practice.md
Update umeng_update_best_practice.md
Create manual_update.md

best practice for manual update.
Update manual_update.md
Create ignore_update.md
Update ignore_update.md
Create force_update.md
Update force_update.md
Create first_not_update.md
Update first_not_update.md
add so for different kernel.
Merge pull request #5 from nxzhou91/master

add libs