refactor: gAPI collect uses promise chaining

Same result, but clearer code flow and more modular
crude sent vs received chart functional
Merge branch 'master' of https://github.com/glebec/gnitty
major: gapi.fetch now a promise for emails.service
added bar splitter
tiny commit
list and post buttons combined
displaying fetch progress in front-end button text
Merge branch 'master' of github.com:glebec/gnitty

Conflicts:
	client/app/main/main.html
removed unused d3 etc
enhanced frontend notifications
removed unused gAPI dependency in emails obj
scatter chart updated with new date format
merged changes
main scope repair
bugfix: restored gAPI dependency
Merge remote-tracking branch 'origin/master'

Conflicts:
	client/app/main/main.html

test
fixing bugs
changes merged
fixed main ctrl and emails service