refs #5320 do not open the keyboard on android when opening the app.

Finally fixed this issue after more than 4 years. Spent days on trying
to fix this issue.
refs #5285 added some dummy piwik mobile beta icons. should get some better looking ones later
refs #5285 track to a different site
refs #5285 added icons for google play, as mentioned will update icon later
updated app name and id for beta version