Merge pull request readium#455 from readium/feature/intel-cfi-improve…

…ments

Feature/intel cfi improvements

release 0.22.1

disabled page transitions, as the feature is totally borken (animation

timing issue + combined visual effects on iframe content and
parent/ancestor HTML containers)

release 0.22

release 0.21

Merge branch 'develop'

Conflicts:
	readium-js

Finishing release 0.20

Updated version

Finishing release 0.19

Merge branch 'develop' of https://github.com/readium/readium-js-viewer …

…into develop

Conflicts:
	readium-js