Bump version to 0.7
Ensure tooltip is destroyed when menu item is destroyed

- Fixed #16
Submenu experiment WIP
Change FeedTitleItem class into generic feed display class

- Started splitting the menu building into class methods so it can be
  updated separately
Feed reader as a child of FeedDisplayMenuItem

- Each FeedDisplayMenuItem now completely manages a single feed
  including handling update and error callbacks and supplying the owner
  applet with summary info (title and unread_count)
- This amounts to a significant refactor of the applet code, but will
  hopefully prove more maintainable going forward
Make sure feed display params are set before creating FeedMenuDisplayItems
First implementation of "accordion" effect

- Auto-open first feed submenu
- Close other submenus when a submenu is opened

Conflicts:
	applet.js
Get FeedDisplayMenuItem width from submenu items
Fix accordion menu toggling
Submenu unread count may be different from reader unread count

- Since submenus may not display all unread items due to max_item limit,
  we should only count the number of unread items shown in the menu when
  displaying a tooltip etc
Fix layout in Cinnamon 2.0.8

- Applet.MenuItem now uses an internal table for layout. This throws the
  whole layout idea of the FeedDisplayItem. We now use a table inside
  this item to make layout a whole lot easier
Add feed status icon to FeedDisplayMenuItem

- Icon indicates if feed contains unread items
Remove submenu triangle
Make FeedMenuItem layout consistent in Cinnamon 1.8.x

- Layout of underlying Applet.MenuItem has changed in Cinnamon 2.0 (now
  uses a table). Since the implementation of Applet.MenuItem is trivial
  and we need to make the layout consistent I have re-implemented
  FeedMenuItem as a direct subclass of PopupBaseMenuItem instead
- This isolates use from the layout changes in 1.8.x -> 2.0.x
Fix read_item icon update

- Needed adjustment due to recent layout changes in FeedMenuIcon.
- Now just updates icon name instead of add/remove icon, resulting in
  simpler code too
Fixed double-read of feed item on click
Append unread count to Feed title
FeedMenuItem emits item-read event
Implemented minimum fixed-width menu

- Menus take the size of their title (or MIN_MENU_WIDTH if this is
  larger). Minimum size avoids tiny menus in case the feed title is too
  short
- Avoids menu resizing issues when expand submenus
- Feed labels automatically truncate
- Added item titles to tooltips to ensure they are visible even if the
  item title is truncated
Remove status icon from FeedDisplayMenuItem