Release nginx ingress controller 0.12.0 (kubernetes#2206)

Release nginx ingress controller 0.11.0 (kubernetes#2122)

Auto stash before merge of "master" and "master/master" (kubernetes#1982

)

Release nginx ingress controller 0.10.2

Release nginx ingress controller 0.10.1 (kubernetes#1975)

Release nginx ingress controller 0.10.0 (kubernetes#1934)

Merge pull request kubernetes#1796 from aledbf/fix-grep-travis

Fix grep in travis-ci to match the version as a word [ci skip]

Merge pull request kubernetes#1765 from aledbf/release-beta19

Release nginx ingress controller 0.9-beta.19

Merge pull request kubernetes#1748 from aledbf/0.9-beta.18

Release nginx ingress controller 0.9-beta.18

Fix regression introduced after update of mergo

Merge pull request kubernetes#1643 from aledbf/beta-16

Release nginx ingress controller 0.9-beta.16