Bump OpenResty to 1.13.6.1

Bump OpenResty to version 1.11.2.5

Lapis version 1.6.0

Bump OpenResty to 1.11.2.4

Bump OpenResty to version 1.11.2.3

Bump Ubuntu to version 16.04.

Upgrade to Lapis version 1.5.0.

Bump Lapis to version 1.4.3

Bump lapis to 1.3.2 and OpenResty to 1.9.7.1

Bump lapis to 1.3.1 and OpenResty to 1.9.3.2