Adding a method for retrieving the list of users in a search by skill
Adding a test for the InvalidArgumentException and adding "self" to the references to the constants
Adding a method to search for people by name and the test for the invalid argument for issue #90
Fix composer.lock and re-seed command

The recent oauth commit contains some new libraries in composer.json,
but it did not include an updated composer.lock.  I have provided this
file in this commit.

In addition to the new libraries, that commit also re-named one of the
environment settings from development to dev.  This breaks the seed-db
phing task.  I have updated the task to use the appropriate environment.
Merge pull request #99 from keelerm84/feature/fix-missing-composer-lock

Fix composer.lock and re-seed command
Making changes from @jcarouth's notes on the PR
Added another fix that I missed
Merge pull request #98 from phpmentoring/user_search

Support user search in the service backend.