add the context menu
remove the "delete" from option menu
remove redundant images
connect the "call" context menu option to the DIAL intent
replace the "add" command with new activity
confrom to spec, and show due date in list rows
change context menu to conform spec
context menu to remove "call" not just hide
remove test tasks, and fix list row alignment
fixing embarrassing month representation bug from ex3
add the ITodoItem interface
change add task menu a little bit so ok button isn't cover by keyboard
Add TodoDAL & SqlLiteHelper classes