Fix platform upgrade tests
Node Platform - Fix cucumber tests
Bump up PostgreSQL memory parameters

Bug 1003445
Values are discussed in
https://bugzilla.redhat.com/show_bug.cgi?id=1003445#c1

Larger gears should allow even larger values, but further discussions
are necessary.

Values are lower on embedded cartridges.
Merge pull request #3548 from jwhonce/wip/oo-devel-node

Merged by openshift-bot
Merge pull request #3547 from BanzaiMan/dev/hasari/bz1003445

Merged by openshift-bot
Merge pull request #3538 from pmorie/dev/fix_tests

Merged by openshift-bot