url shortener doesn't go after URLs shorter than 20 chars and a help plugin

Signed-off-by: Jonathan E. Magen <jonathan@wework.com>
readme

Signed-off-by: Jonathan E. Magen <jonathan@wework.com>
stats plugin

Signed-off-by: Jonathan E. Magen <jonathan@wework.com>
Merge branch 'master' of github.com:WeWork/weboto