Add back change-version-to-X.sh scripts, as wrappers for new script, for backwards compatibility

Author: Sean Owen <sowen@cloudera.com>

Closes #7639 from srowen/SPARK-9304 and squashes the following commits:

9ab2681 [Sean Owen] Add deprecation message to wrappers
3c8c202 [Sean Owen] Add back change-version-to-X.sh scripts, as wrappers for new script, for backwards compatibility