Added initial tests

make an account at https://travis-ci.org/
enable the collection2 repo
add the build image to the readme (right click on the build image in
travis to get the md - takes awhile until tests are run - you'll get an
email)

This is just initial tests - guess all operations should be tested -
for now insert is added, but update would be next
Merge pull request #19 from raix/add-tests

Added initial tests