Allow overriding default env without editing conf (#2746)
Allow overriding default env without editing conf (#2746)

Update the default conf/accumulo-env.sh script to support overriding
some of the default java options it sets by placing user-provided
options specified by the `ACCUMULO_JAVA_OPTS` environment variable after
any options set in the script (because Java will likely take the last
value set on the command-line).

This fixes #2744
ctubbsii/accumulo,milleruntime/accumulo,apache/accumulo,apache/accumulo,apache/accumulo,ctubbsii/accumulo,apache/accumulo,milleruntime/accumulo,ctubbsii/accumulo,milleruntime/accumulo,milleruntime/accumulo,ctubbsii/accumulo,ctubbsii/accumulo,apache/accumulo,ctubbsii/accumulo,milleruntime/accumulo,apache/accumulo,milleruntime/accumulo,milleruntime/accumulo,ctubbsii/accumulo,apache/accumulo