Partial-Bug: #1404355
Issue: per host buid_info returns empty; breaks storage node infobox display
Fix:
    1. added check to verify length of the value in property build_info. response may be empty array or a string
    2. if response is empty, version will be set to N/A
Test:
    checked by connecting API to HA cluster which has the issue noted.

Change-Id: I66a3865e1ad26fdb731f87ab2bd911a39f38d449
Merge "Partial-Bug: #1404355 Issue: per host buid_info returns empty; breaks storage node infobox display Fix:     1. added check to verify length of the value in property build_info. response may be empty array or a string     2. if response is empty, version will be set to N/A Test:     checked by connecting API to HA cluster which has the issue noted." into R2.0