Ignore .DS_Store
Use TodoItem#getTodoItemType to check for task type
added update and delete buttons
Extracted date handling code out into methods
Set window to be unresizable
Added a back-reference to Main for TaskListCell
Moved setAndFocusInputField from SidebarController to Main, and added functionality for the update and delete buttons
Refactored SidebarController event handlers to use the correct method
merged master and fixed merge conflicts
Merge pull request #38 from DrJJ/gui

Update + delete buttons, no image yet
added image to the buttons
Merge remote-tracking branch 'origin/master' into gui
Merge pull request #39 from DrJJ/gui

done with update and delete buttons
Conclude merge