mvn-all-347-tests.sh: add some tests, remove obsolete ones

Signed-off-by: Colin Patrick McCabe <cmccabe@cloudera.com>
mvn-make-tar.sh: don't source mvn-common-env.sh

Signed-off-by: Colin Patrick McCabe <cmccabe@cloudera.com>
Remove mvn-common-env.sh

Signed-off-by: Colin Patrick McCabe <cmccabe@cloudera.com>
patchr.py: add HADOOP-10388 and fs-encryption branch specifiers

Signed-off-by: Colin Patrick McCabe <cmccabe@cloudera.com>
add mvn-all-blockreader-tests.sh

Signed-off-by: Colin Patrick McCabe <cmccabe@cloudera.com>