storing the formid value so we don't parse each time
reattaching menu item click event each render of rowSelector
adding track.js to index.html
Merge pull request #361 from kobotoolbox/tp1114

Tp1114 - event is attached multiple times to wrapper
#1077 - Group and its children are hidden after being grouped again
#1065 - Can't add a question inside a group (on staging)
Update activation_email_subject.txt
Update activation_email.txt
Update activation_complete.html
merging conflicts
Merge pull request #364 from kobotoolbox/tp944

Tp944
fixing ensureElInView to handle elems within group__rows

this could help with tp #1119 and memory issues
removing old email credentials
re-rendering rowDetail views on survey _reset
merging conflict
misc fixes to survey render stage

* returning ensureElInView to previous version
* softRender groups to keep functionality but improve performance
Merge pull request #362 from kobotoolbox/row-grouping

#1077 - Group and its children are hidden after being grouped again
#1034 - duplicate names when adding the same row from qlib twice
fix for #920: improve modal window styling
minor fix in message for #920