GitLab

I plan to move this into a second project once needed.

Request high resolution icons designed for touch interface
and store them in SQLite database

Already done by ECM

Fixes #12

Fixes #4

Fixes #13 and related to #12

This commit makes it explicit when tabs model url is changing
url of the webview. Without such decoupling, it mobile google search
result was restored as a tab, clicking on search leads to change in url
and resets page back to its older state making it impossible
to a new enter search string

It should always be created using instance()