Replace tipsy with tooltip

Allow loading of multiple messages

Fix unit tests - mock IUrlGenerator

show sender avatar again.

set accountId and folderId on each message to fix unified inbox replies

don't show a placeholder if 'from' isn't set on the message

change attachment template to underscore template

Fix prefetching messages in background marking them as read

remove new uncached messages from folder list cache

fixes #952

cache new messages loaded in background

round sender/receiver photos

Use consistent button labels: 'Check messages …' and 'Checking messages…

This ensures messages are shown immediatelly when either clicking on a notification (which triggers a folder refresh and cached messages are shown first) or if you are in a folder other than the inbox with new messages and switch to the inbox (same reloading/caching issue).

Fix: New mails sent from unified inbox

Remove trailing whitespace

fixed 404 link in readme

js/views/composer.js: line 323, col 34, Expected '===' and instead saw '=='.

Fixes #921

fix new account dialog not scrollable on mobile, fix #909

Revert "Fix: New issue New mails sent from unified inbox #921"