Set the role id to be generated

See https://github.com/strongloop/loopback-connector-postgresql/issues/5
Add a test case
Merge pull request #254 from strongloop/feature/role-id

Set the role id to be generated
Fix a slowdown caused by mutation of an incoming accessToken option.
Merge pull request #341 from STRML/fixAccessTokenMutatedOptions

Fix a slowdown caused by mutation of an incoming accessToken option.
Remove relationNameFor
Update juggler dep
Merge pull request #342 from strongloop/feature/refactor-relation

Upgrade to loopback-datasource-juggler 1.6
Update link to doc
Mark `app.boot` as deprecated.
Merge pull request #348 from strongloop/feature/deprecate-app-boot

Mark `app.boot` as deprecated.
Update debug setting
Bump version and update deps
Merge branch 'release/1.9.0' into production
Merge tag 'v1.9.0'

1.9.0
Invalid Access Token return 401

Clean up logic to be easier to read.
Signed-off-by: Karl Mikkelsen <karl@karlmikko.com>
Fix "ReferenceError: loopback is not defined" in registry.memory().

Signed-off-by: Guilherme Cirne <gcirne@gmail.com>
Merge pull request #351 from globocom/fix/registry-memory

Fix ReferenceError: loopback is not defined in registry.memory().
Merge pull request #335 from karlmikko/bug/invalid-token-unhandled

Ignore unhanded error - simulate token missing
v1.9.1