Include OPENSHIFT_BUILD_NAME in version string

[jennydaman]

When building an image on OpenShift using s2i, the environment has a variable OPENSHIFT_BUILD_NAME which (if available) can be useful information to include in the version string.

The suffix of OPENSHIFT_BUILD_NAME is a monotonic counter indicating the build number, which might be preferable to the git history monotonic counter we're currently using:

ChRIS_ui/print_version.sh

Line 10 in 7cdee4c

"$(git rev-list --use-bitmap-index --count --merges version-0..HEAD)" \

• git-history-based counter requires entire history to be pulled and git to be installed
• environment variables are more portable, if we rethink the version string to depend on environment variables, we can maybe drop the dependency on bash

[jennydaman]

OPENSHIFT_BUILD_COMMIT might also be a useful environment variable.