Patched Orchestration wadl: orchestration-api.wadl

Corrected title and description for method template_validate.
Standardized use of title capitalization in method titles as in other OS wadls.
Fixed description for method Get Resource Metadata.
Updated pom.xml file to use doctools version 1.9.3 instead of 1.9.1 to correct line breaks.

Change-Id: I7aacd26dd0bac745a496bc90f3613b560524f3a6
Merge "Patched Orchestration wadl: orchestration-api.wadl"