add angular to makefile
remove unnecessary translation between priority letter and expanded word.

e.g. 'H' provides just as much semantic value as 'High'.
use angular to generate task list instead of jquery
function to refresh tasks
display task detail for current task
set current task when clicking in task list
display task property table in detailed pane
add 'active' class when task is clicked
finish current task
remove unneeded javascript.

This functionality is implemented in Angular.
Reimplement functionality with Angular.js.

Now the code is more structured and simpler to modify/maintain.