TAB-3351 Remove pom files from samples included in kits and update READMEs

git-svn-id: http://svn.terracotta.org/svn/ehcache@8848 b9324663-ca0f-0410-8574-be9b3887307d
TAB-3351 Merge rev 8848 from branches/ehcache-2.7.x

git-svn-id: http://svn.terracotta.org/svn/ehcache@8849 b9324663-ca0f-0410-8574-be9b3887307d
TAB-3351 Merge rev 8848 from branches/ehcache-2.7.x

git-svn-id: http://svn.terracotta.org/svn/ehcache@8850 b9324663-ca0f-0410-8574-be9b3887307d