account for no-appserver value even when it's not set

git-svn-id: http://svn.terracotta.org/svn/ehcache@8118 b9324663-ca0f-0410-8574-be9b3887307d
merge 8118 from trunk/ehcache-os 

git-svn-id: http://svn.terracotta.org/svn/ehcache@8119 b9324663-ca0f-0410-8574-be9b3887307d
merge 8118 from trunk/ehcache-os 

git-svn-id: http://svn.terracotta.org/svn/ehcache@8120 b9324663-ca0f-0410-8574-be9b3887307d
not needed

git-svn-id: http://svn.terracotta.org/svn/ehcache@8121 b9324663-ca0f-0410-8574-be9b3887307d
merge 8121 from trunk/ehcache-os 

git-svn-id: http://svn.terracotta.org/svn/ehcache@8122 b9324663-ca0f-0410-8574-be9b3887307d
merge 8121 from trunk/ehcache-os 

git-svn-id: http://svn.terracotta.org/svn/ehcache@8123 b9324663-ca0f-0410-8574-be9b3887307d