Temporarily reenabling debug output on NetworkInstance
Adds logging on NetworkInstance shutdown
Adds cutoff of elections when there is no quorum.

When a value is delivered to the AB, the guarantee currently is that it will eventually
get delivered. That means than an instance that loses quorum, demotes another and elects itself
coordinator will have that value broadcasted when quorum is reestablished. This will potentially
lead to conflicts with other instances that have done the same and races will ensue.
This patch ensures that elections don't happen when quorum is not present.
Solves race condition on test base directory creation
Avoiding confusion in the shell manpage.
ensuring read access to persistence windows' byte buffers does not interfere with flushing by duplicating it first; ensuring access to logical log rotation is synchronised on XaResourceManager by removing direct calls to it
Merge pull request #733 from lassewesth/flushing

Preventing buffer overflow
Updated wrappers to not require numbers for additional parameters
Added GC debug commented out in wrapper config
Add permgen classloader GC as default in wrapper config
Merge branch 'master' into 2.0