Added logo by Disabler

Lets look at this in real life
Chatlogs.html: absolute path to conferences, deleted support contacts from footer, layout adjusting
Revert "Added logo by Disabler"

This reverts commit c696cba9fa1476a6bf36fcd716bd800fb921cb1c.
Chatlogs.html: typo fix
Final additions

* gitignore: ignore Thumbs.db in Windows
* index2 as index.html for its better design
* jtalk png->ico as a standard
Preparing for deployment now.
Recover index.html
Chatlogs icons added
Navbar + sticky footer