Fixed some confusing wording and a typo

Signed-off-by: Shwetank Dixit <emailshwetank@gmail.com>
Merge pull request #136 from shwetank/master

Fixed some confusing wording and a typo
removes e.services from the explainer. Refs #134
Updates for TS 0.9.5 and adds navigator object in a cleaner way. Refs #122
WorkerLocation -> interface and cruft removal. Refs #122
Adds a registration global to help SW's disambiguate. Fixes #94
Ensure that `onerror` is available from AbstractWorker. Refs #97
Ensure that SharedServiceWorker interface clearly includes AbstractWorker and therefore `onerror`. Fixes #97
Updates for clarity.