Make 6.8 understand tests.distributions=default
This  change removes a lot of complexity from our CI setup by not having
to care about the differences of how distributions are called across
branches.
@@ -31,6 +31,16 @@ class ClusterConfiguration {
@Input
String distribution = 'zip'
+ public String getDistribution() {
+ // Never version call this 'default' and 'oss' create an alias so we
+ // understand those names
+ if (distribution == 'default') {
+ return 'zip'
+ } else {
+ return distribution
+ }
+ }
+
@Input
int numNodes = 1
