Modified sample links in os-keypairs.wadl

Modified:   api-ref/src/wadls/compute-api/src/ext/os-keypairs.wadl to point to samples in ../api_samples/os-keypairs
Deleted the following files from api-site/api-ref/src/wadls/compute-api/src/ext (no longer needed):
 keypair_create_response.json
 keypair_create_response.xml
 keypair_list.json
 Keypair_publickey_create_request.json
 keypair_publickey_create_request.xml

Build Successful

Patchset just rebases against master to pick up 1.5.2 in the pom.xml.

Fixes: bug 1095720

Change-Id: Ie326532763734bd9ea5edcd68580f8634c198ecd
Merge "Modified sample links in os-keypairs.wadl"