SHIRO-316: applied patch.  Due to patch's age, I did not use the patch's AspectJ version 1.6.7 since the project is already using a later stable version (1.6.12)

git-svn-id: https://svn.apache.org/repos/asf/shiro/trunk@1479181 13f79535-47bb-0310-9956-ffa450edef68
SHIRO-316: applied patch.  Due to patch's age, I did not use the patch's AspectJ version 1.6.7 since the project is already using a later stable version (1.6.12).  Also upgraded the aspectj-maven-plugin from 1.3 to 1.4

git-svn-id: https://svn.apache.org/repos/asf/shiro/trunk@1479184 13f79535-47bb-0310-9956-ffa450edef68
SHIRO-379: patch applied but with improvements (using concurrent read/write locks)

git-svn-id: https://svn.apache.org/repos/asf/shiro/trunk@1479203 13f79535-47bb-0310-9956-ffa450edef68
SHIRO-388: added test to verify correct functionality.

git-svn-id: https://svn.apache.org/repos/asf/shiro/trunk@1479209 13f79535-47bb-0310-9956-ffa450edef68
SHIRO-394: applied fix per Jira issue

git-svn-id: https://svn.apache.org/repos/asf/shiro/trunk@1479215 13f79535-47bb-0310-9956-ffa450edef68