Bug 834122 - FTU captive portal
Merge pull request #7979 from alivedise/bugzilla/834122_v1-train/rebasing2

Bug 834122 - FTU captive portal, r=timdream, a=blocking-b2g:shira+
Bug 835795 - hide iframe if it's launched in bg
Merge pull request #8026 from alivedise/bugzilla/835795_v1-train/dont-set-visibility-to-false-init-app

Bug 835795 - hide iframe if it's launched in bg, r=timdream, a=blocking-b2g:tef+