Create new scopes on every changeTemplate request, even if
the same template is being viewed; presume that we want a
new instance of the same template. Avoids scope reuse for
cases such as switching from a plot of one object to a
plot of another object.
Handle edge cases (e.g. directive priorities, race conditions)
to ensure that mct-representation and mct-include display correctly
when added to or removed from the DOM.
...of templateLinker into mct-representation. Not working currently
due to prevalence of mct-representation instances with transcluding
directives (hitting a multiple transclusion error.)
