use backbone collections/models for account data

use backbone/marionette triggers for UI events

fix autocomplete

settings accounts view marionette

make 'mail' a marionette application

make 'mail' a marionette application

refactor cache.js

refactor communication.js to match revlealing module pattern

refactor search.js to match revlealing module pattern

refactor ui.js to match revealing module pattern

Refactor background

Force jscs

Block images

Adjust version to 0.3.0

Update dependencies

downgrade jquery autosize

show pointer cursor when hovering message list as feedback

update version, fix license

Fix message deletion by 'del' hotkey while adding a new mail account.