REST API Reference Guide update to reflect Service Requests as subcollection

- Supporting /api/service_templates/#/service_requests
- Supporting /api/service_templates/#/service_requests?expand=resources,request_tasks
- Supporting /api/service_requests/#/request_tasks (or tasks)
Updating REST API versioning to v1.0
Merge pull request #32 from abellotti/rest_api_guide_version_1_0

Rest api guide version 1.0