Display a profile list in the left hand side.
We no longer have any MultiReporters after bug 910517.
Refactor tools.js into a memory controller object and use the SideMenuWidget in the sidebar.
Remove some leftovers from the previous approach.
After the MultiReporter change this will no longer run on Fx 25.
Make storing and switching between multiple profiles actually work.
Fix saving profiles.
Add support for importing a saved memory profile.
Fix the gradient of the swatches.
Fix the width of the SideMenuWidget.
Merge branch 'profile-list' to the mainline.