add getting started video 06: uninstalling local packages
add getting started video 04: installing local npm packages
add text for gs video 04
update link for gs video 04
Merge pull request #64 from linclark/video-gs-installing-local

add getting started video 04: installing local npm packages
add getting started video 05: updating local packages
add text for gs video 05
Merge pull request #65 from linclark/video-gs-updating-local

add getting started video 05: updating local packages
add links to www
Merge pull request #78 from npm/link-to-home

add links to www
add getting started video 07: installing global packages
add text for gs video 07
update link for gs video 07
Merge pull request #66 from linclark/video-gs-uninstalling-local

add getting started video 06: uninstalling local packages
Merge pull request #68 from linclark/video-gs-installing-global

add getting started video 07: installing global packages
add text for gs video 06
add getting started video 08: updating global packages
replace gs video 08 with text
Merge pull request #69 from linclark/video-gs-updating-global

add getting started video 08: updating global packages
Merge remote-tracking branch 'upstream/master' into deploy-staging