Dockerfile: increment image builder to 2018-03-27
Dockerfile: increment image builder to 2018-03-27

Signed-off-by: André Martins <195f35574482d3cec9431e5e1d892c7e763ea9a3@gmail.com>

scanf/cilium,cilium-team/cilium,tgraf/cilium,michi-covalent/cilium,tklauser/cilium,cilium/cilium,eloycoto/cilium,cilium/cilium,tklauser/cilium,cilium/cilium,michi-covalent/cilium,tgraf/cilium,scanf/cilium,eloycoto/cilium,tgraf/cilium,eloycoto/cilium,eloycoto/cilium,eloycoto/cilium,scanf/cilium,scanf/cilium,tklauser/cilium,cilium-team/cilium,tklauser/cilium,tgraf/cilium,tgraf/cilium,scanf/cilium,tgraf/cilium,cilium/cilium,michi-covalent/cilium,cilium/cilium,michi-covalent/cilium,eloycoto/cilium,scanf/cilium,scanf/cilium,eloycoto/cilium,tklauser/cilium,michi-covalent/cilium