added logo
add logging extender to subscribables

when you click on a button in a devtools panel, it will look to the
viewmodel attached to the body and attaches the extender that will log
the changes to a observable
show mark in timeline when observable changes

only works when already recording
uitleg extensie in panel gezet
requirejs + meerder VM ondersteuning in panel
option page. setting to disable extra tab
Re-enable 'Start Tracing' button on page refresh

you can only start tracing once (else you would just double te tracing)
but when you reload the page, button should be back enabled.
indent sub viewmodel changes

based on the .$parents length , log the messages with some indentation
new folder structure for page + styling
changed some tips text in panel
after clean install: checkbox showPanel checked

after you saved something, it reflects the value in the localstorage
upgraded version number in manifest to 1.7

added some extra description