Increase oembed cuke stability

By using the more robust step for posting
Fixed bootstrap pages
Merge pull request #5165 from jaideng123/5106-scrolling_in_notifications

Fixed notifications dropdown on bootstrap pages
Changelog note for change in jQuery CDN default
Merge pull request #5164 from goobertron/tos_notes

Changelog note for change in jQuery CDN default
Remove validation.js from mobile sign in page (fix regression)
Merge branch 'release/0.4.1.0' into develop
Redesign contacts page
Increase max length of simple_captcha to 12
Simplified range check
Display all contacts in the contact list
Add contacts search and port aspect membership save/destroy to backbone
Small style changes, add tests
Add visibilit icons in publisher dropdown aspect
Add jasmine tests
Merge pull request #5169 from jaideng123/5157-Increase_captcha_field_length

Increase max length of simple_captcha to 12
Merge pull request #4982 from Flaburgan/add-icon-in-dropdown-aspect

Add visibility icons in publisher dropdown aspect
Merge pull request #5153 from svbergerem/redesign-contacts-page

Redesign contacts page