adding tenant header to example requests in docs.
create superadmin tenant in the store on start up.
Merge remote-tracking branch 'origin/develop' into feature/superadmin-initialization
Merge remote-tracking branch 'origin/develop' into feature/add-tenant-header-to-examples
default provisioner register port
Merge pull request #309 from continuuity/feature/provisioner-bind-default

default provisioner register port
Merge pull request #303 from continuuity/feature/add-tenant-header-to-examples

adding tenant header to example requests in docs.
Merge pull request #305 from continuuity/feature/superadmin-initialization

create superadmin tenant in the store on start up.
Merge remote-tracking branch 'origin/develop' into feature/use-tenant-name-externally

Conflicts:
	server/src/main/java/com/continuuity/loom/admin/Tenant.java
	server/src/main/java/com/continuuity/loom/http/handler/LoomAuthHandler.java
	server/src/main/java/com/continuuity/loom/store/tenant/SQLTenantStore.java
	server/src/test/java/com/continuuity/loom/http/LoomSuperadminHandlerTest.java
	server/src/test/java/com/continuuity/loom/store/tenant/TenantStoreTest.java