bump to rc3.
Fix a hanging bug for lookup when there is no application.
Merge branch 'feature/v0.1' into develop
Use local file to transmit arguments rather than env key/value
Merge branch 'feature/v0.1' into develop
Avoid memory leak when lookup is called many times.
block with a timeout
Update version
Fix infinite instance issue.
Merge branch 'feature/v0.1' into develop
Merge pull request #23 from continuuity/develop

Bug fix on hanging issue on lookup where there is no app
Upgrade to rc5
Fix logic on decrease->increase number of instances.
Merge branch 'feature/v0.1' into develop
Merge pull request #24 from continuuity/develop

Fix change number of instances.