Merge pull request kubernetes#251 from bprashanth/balancing_mode

Balancing mode UTILIZATION -> RATE

Merge pull request kubernetes#232 from aledbf/fix-spell

Change searchs with searches

Merge pull request kubernetes#189 from bprashanth/nginx-release

Change nginx controller image to 0.9.0-beta.1

Merge pull request kubernetes#178 from aledbf/proxy-name

Add initialization of proxy variable

Merge pull request kubernetes#47 from lichen2013/master

Fix the hyperlink in CONTRIBUTING.md for issue search