add Google data-layer-helper
switch to processing via injecting data-layer-helper
fix missing initial data and loss of data on page navigation
updated docs
lots and lots of fixes for content script injection not being specific to inspected window, and losing track of the GTM ID
fix failure on click tracking or anything else passing an element (JSON.stringify was throwing circular reference errors)
show detected elements in italics
changes to interprocess messaging
fix for script injection; interpage messages renamed
smarter about loading settings; options page now notifies panel
make sure event data exists before we display it, and unescape it from GA format
unescape GA formatted CVs
understand site speed info
get rid of some stuff we don't need
track in-page link attribution
fixed bugs in parsing classic CVs
we don't need data-layer-helper as its own file
I assume this in-page data may be escaped like everything else?
changelog updates
credit data-layer-helper in options