remove extra blank new lines
fix bug where articles were not taking up 100% of the width
add superficial support for editing a feed

+ editing mode added to feeds controller
+ edit button added to main-menu
+ support changing statuses for a feed (editing, unread count,
refreshing etc..)
+ lots of styling changes
+ increase size of main menu to 250px
add edit feed function which sends signal to open feed dialog
add function to get title of form also renamed signal

+ signal called addFeedButtonClicked was renamed to openFeedDialog
rename showAddFeed to addFeed and update event trigger to openFeedDialog
tweak feed status area
add styling for 'danger' class button
show title of feed and delete button when editing a feed
update template to match new function names for editing & saving
don't style prestine inputs as valid (even if they are valid)
add function for getting text to display on save button

+ 'Add feed' if new; 'Update Feed' if editing
change text displayed on submit button based on context
add method for updating a feed
add method for deleting a feed
increased width of main menu
renamed feed dialog selector which assumed it was only used for addint
add listener for when a feed is deleted
disable pointer-events for links and buttons when menu hidden
disable editing mode when an article is selected