v1.8.2
test(ngAnimate): ensure that `blockTransitions` can be spied upon
perf(ngAnimate): avoid repeated calls to addClass/removeClass when animation has no duration
docs(*): fix typos
chore(package): fix some warnings/errors
fix($animate): avoid memory leak with `$animate.enabled(element, enabled)`
fix(ngAnimate): remove prepare classes with multiple structural animations
fix(ngAnimateSwap): make it compatible with `ngIf` on the same element
docs: fix typos throughout the codebase