Add attachment limit size information on avatar and attachments
Catch errors with heavy files and show info messages about the maximum size allowed.
Update CHANGELOG.md
Fix CSS errors in linter
fix #1483
Merge pull request #129 from taigaio/bug/1483/wysiwyg-lists

fix issue #1483: wysiwyg lists error
US/1396 - extra text for inviting users
Minor UX and style fixes in add members lightbox
Updating changelog
Fix placeholder
Merge pull request #128 from taigaio/us/1396/extra-text-for-inviting-users

Us/1396/extra text for inviting users
Merge pull request #130 from taigaio/us/1212/attachment-max-size

US #1212: Show info about maximun size allowed for the avatar and attachments
Merge remote-tracking branch 'origin/master' into us/1286/us-task-issue-details-refactor

Conflicts:
	app/styles/layout/us-detail.scss