Use external iframe for potatolytics (bug 1061697)
fix dev/stage package origins
address top-margin clip on tablet widths (bug 1064693)
make sure nav stack never empty (bug 1064631)
Merge pull request #648 from ngokevin/navfix

make sure nav stack never empty (bug 1064631)
fix "works offline" icon (bug 1022793)
Merge pull request #650 from cvan/offline

fix "works offline" icon (bug 1022793)
Merge pull request #634 from diox/use-external-iframe-for-potatolytics

Use external iframe for potatolytics (bug 1061697)
address the tablet clip on homepage also (bug 1064693)
fix other pages' tablet clip (bug 1064693)
make stats-po more accurate