Merge branch 'release/0.3'
Merge branch 'release/0.4'
Merge branch 'release/0.5'
Merge branch 'release/0.6'
Moved JS layer to separate readium-shared-js project
Merge branch 'master' into feature/js_separation
Moved JS script files to separate foledre
Merge branch 'feature/js_separation' into develop