added parentEvent and updated code

added parentEvent.html to understand perf considerations of postMessage
vis-a-vis dispatchEvent.
general cleanup plus additions

fixed bug in wapi
added parentRS.html to simulate reading system
prototype code to subscribe to events
add slider
change event subscription
new directory for wapievent

optional code to be used by RS or interested docs. Still a lot of
issues to sort out.
cleanup of widget_api.js and event integration

added code to pass subscriptions to delay loaded components.
silence childeventa.html
cleaned up public facing properties of wapi.
rename of some system level topics and methods
add package.json, start to use google unit tests
adding test infrastructure and build enhancements

package.json handle connect and google closure libs
test infrastructure is still nascent
cleanup of testing code
remove unused code, add new tests, restructure dirs

add tests for communication hierarchy, pause/resume, general cleanup of
test code, some TODOs
condense widget_api.js and publishEvents.js into a single file
fix package.json

an issue exists on windows with the nada install
restructuring of widget_api.js to facilitate conversation

added domain isolation test - needs changes to hosts file
numerous changes in preparation for face 2 face

code clean up
added some docs
fixed package.json to install connect and closure-library