Allows custom message for each path

You can have a custom message for each path by setting 'validate_unique_message' in the Schema options.
added custom validator message to the schema unique option and included lastest tests
Merge pull request #1 from muZk/master

Allows custom message for each path
Removed duplicate getUserSchema function.
Updated jasmine-node version.
Merge branch 'hypersolution1-master'. Closes #16.