Merge pull request #314 from jasobrown/1.2

adding in config for three yaml props

reviewed by vinh nguyen
[Gradle Release Plugin] - pre tag commit:  '1.2.23'.
[Gradle Release Plugin] - new version commit:  '1.2.24-SNAPSHOT'.
Fix the bug in double-ring case where Priam is confused as the replace address case.
Add more waited time if Priam is bootstrapping C* with a new IP as SG needs some time to get updated by other seeds.
Fix get_seeds REST API to return a seed if its instance id is valid
Provide a function to check whether an instance is a dummy one
Merge pull request #321 from timiblossom/1.2

Mostly for double-ring bug fix
Merge remote-tracking branch 'origin/1.2'

Conflicts:
	gradle.properties