replace the observer pattern with a simple update function
treea32949ea9d72d1498a3400871a0b837f74087cea
-rw-r--r-- 226 .classpath
-rw-r--r-- 63 .gitignore
-rw-r--r-- 362 .project
drwxr-xr-x - .settings
-rw-r--r-- 387 Makefile
drwxr-xr-x - protoas
drwxr-xr-x - si
drwxr-xr-x - src