Fix corner case for Kobo Aura: tev.id == -1 with tev.x and tev.y values defined.
Fix flaky input support for kobo Aura.
Merge branch 'master' of https://github.com/koreader/koreader
Merge pull request #443 from giorgio130/master

Fix corner case for Kobo Aura: tev.id == -1 with tev.x and tev.y values defined.