front page overhaul
Merge branch 'master' of github.com:glebec/gnitty into g-ui
refinement of front page
routing to dashboard automatically
formatting edits for presentation
enhanced gnitify button
corrected front-page text
debug: added try-catch for email label scan

Some peoples' inboxes trigger a "cannot read length of undefined" exception. Added try-catch with an alert to help debug those rare cases. The window alert should be removed before production launch.
bugfix: handling undefined labels from gAPI
Merge branch 'master' into g-ui