Create yt.js

Function for Youtube Search
Delete yt.js
Create yt.js

Function for Youtube Search
Update index.html

added ytsearch function for Youtube Search
Update index.html

Youtube made like other web searches
Safe search implemented.

Safe Search implemented to "strict".
Style for YouTube thumbnails
Resolved the VideoId/ChannelId issue 

YouTube channel results will not affect the search now.
Conflict Correction and slight youtube image correction