node_modules is not gitignored, fixes #21
add error details to http messages in development, fixes #23
Merge pull request #22 from opentok/issue-21

node_modules is not gitignored, fixes #21
Merge pull request #27 from opentok/issue-23

add error details to http messages in development, fixes #23
Merge branch 'master' into issue-26
update npm modules