handle event once a feed is saved
add angularjs-spinner dependency
ignore vim swo files
set default background opacity on dialogs
remove container tag from feed form template
remove feed dialoging handling logic from app controller
add angularSpinner dependency to angular app
reset articles to null before getting new articles

+this forces angular to regenerate the DOM for the articles list
 which is useful becaus the ngInfiniteScroll directive needs to be
 reinitialized
add angular spinner dependency and have feed controller handle the feed
dialog
move logic for handling add feed dialog into feed controller

+ also added preFeedSaved and postFeedSaved events
listen to postFeedSaved event to see if a new feed was added

+ also fixed indentation issues
+ if a new feed was added within the event then add if to the list of
feeds
add logic for detecting when a feed is still being added

+used to display a spinner instead of add button when a feed is still
being added
bind article descript as html
increase width of main menu
bunch of stylistic changes

+add styling and animation for articles-scroll-container
+have articles class set the right border
restructure template to make animations work with
articles-scroll-container
display spinner instead of add buton if currently adding a feed
add styling for adding feed spinner