kubectl gs get releases needs an update

[marians]

Several problems:

• CALICO no longer populated (probably to be removed)
• CONTAINER LINUX no longer populated
• COREDNS no longe rpopulated

I suggets to remove the columns that cannot be populated, and make sure info is shown in the columns that are kept.

Current snapshot:

VERSION      STATUS       AGE    KUBERNETES   CONTAINER LINUX   COREDNS   CALICO
aws-25.0.0   DEPRECATED   112d   1.25.16      n/a                         n/a
aws-25.1.0   DEPRECATED   78d    1.25.16      n/a                         n/a
aws-25.1.1   DEPRECATED   17d    1.25.16      n/a                         n/a
aws-25.2.0   ACTIVE       71d    1.25.16      n/a                         n/a
aws-25.2.1   ACTIVE       17d    1.25.16      n/a                         n/a
aws-26.1.0   ACTIVE       70d    1.26.15      n/a                         n/a
aws-26.1.1   ACTIVE       17d    1.26.15      n/a                         n/a
aws-27.1.0   ACTIVE       70d    1.27.14      n/a                         n/a
aws-27.1.1   ACTIVE       10d    1.27.14      n/a                         n/a
aws-27.2.0   ACTIVE       10d    1.27.16      n/a                         n/a
aws-28.1.1   ACTIVE       45d    1.28.11      n/a                         n/a
aws-28.1.2   ACTIVE       10d    1.28.11      n/a                         n/a
aws-28.2.0   ACTIVE       9d     1.28.14      n/a                         n/a
aws-29.1.0   DEPRECATED   45d    1.29.8       n/a                         n/a
aws-29.2.0   DEPRECATED   10d    1.29.9       n/a                         n/a
aws-29.3.0   ACTIVE       9d     1.29.9       n/a                         n/a