fix supervisor crash by handling case when st_nlink == 0
Subscribe to 'sessions' by session ID. Get rid of 'session-*' entries in Meteor.Session.
oops, var self
delete old 'sessions' subscription
Add anonymous user test

Creates a grain with a logged in user, and then tests that the a
non-logged in user can access that grain and see its contents as
expected.
Change Dockerfile to cache gtest

We were seeing intermittent problems with gtest's source going down, and
this commit will change to us caching it.
Merge pull request #175 from dwrensha/sessionId1

Subscribe to 'sessions' by session ID
Merge pull request #178 from jparyani/cache-gtest-docker

Change Dockerfile to cache gtest
Merge pull request #177 from jparyani/add-anonymous-user-test

Add anonymous user test
Merge pull request #168 from dwrensha/lstat

fix supervisor crash by handling case when st_nlink == 0
Fix anonymous user test getting stuck on downgrade info page
remove obsolete comment
intsall -> install
get rid of cookie clearing that has been obsoleted by random host IDs
Merge pull request #179 from jparyani/fix-anonymous-test

Fix anonymous user test getting stuck on downgrade info page
Update to node-capnp 0.1.11.
Merge branch 'master' of github.com:sandstorm-io/sandstorm
Merge pull request #180 from dwrensha/cleanup

miscellaneous cleanup
use percent encoding for X-Sandstorm-Username
Fix up tests README to a bit more clear on what is needed for docker