ISPN-4675 Missing server configuration for remote executor thread pool

Add server configuration for the remote command executor and the total order executor.
ISPN-4828 Increasing default internal thread pool size

* Use the JGroups defaults for the internal thread pool (core = 2, max = 4)
* Increase the max size of the remote executor thread pool to 200 (core = 1)
* Change some of the settings in the default server JGroups configuration
  to better match the embedded default (but keep the higher thread counts).
ISPN-4794 Ant errors in some modules with partial builds (mvn -am -pl)

I added a pom dependency from server/integration/testsuite to
server/integration/build.