Update stt.js

Update theme version.
LB-706: Add div container around embeded iframe, in youtube posts

Update html for youtube/soundcloud items.
LB-683: Create the user comment pop-up and integrate with backend captcha functionality

Initial popup implementation.
LB-683: Create the user comment pop-up and integrate with backend captcha functionality

Make sure comments view is loaded only once.
LB-683: Create the user comment pop-up

Update storage to save captcha info via headers.
LB-683: User comments popup

Remove '*' from placeholders.
LB-683: User comments popup

Lazy load recaptcha.
Revert "LB-706: Add div container around embeded iframe, in youtube posts"

This reverts commit d4b77b5acbf33b2d388418986f6753e4fc52c15c.
LB-709: Creator's name is absent from Embed URL

Normal posts have AuthorName
and source posts have CreatorName.
Merge pull request #149 from petrjasek/devel-user-comments

LB-683: User comments popup
LB-484: User Comments source

added gateway_captcha plugin for start-source.bat
LB-484: User Comments

Comments as a source fix
Merge pull request #170 from vladnicoara/devel

LB-484: User Comments
Merge pull request #171 from nistormihai/devel

Devel