Upgrade Apache Shiro 1.2.4 to 1.2.5

Upgrade Apache Shiro 1.2.4 to 1.2.5

Fixes include the following:
[SHIRO-443] - SessionValidationScheduler created multiple times, enabling it is not thread safe
[SHIRO-462] - Authentication exceptions are swallowed
[SHIRO-467] - Authentication exception gets swallowed
[SHIRO-550] - Randomize default remember me cipher
[SHIRO-504] - Java 8 support
[SHIRO-516] - Explicitly specify the version of aspectjtools to avoid build warning
[SHIRO-562] - WildcardPermission calls String.trim() twice in setParts()

Release notes are located here:

https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12310950&version=12332994

Change-Id: Ic4a2342abecc31d7beb1b204adfba03bda78d3a8
Signed-off-by: Ryan Goulding <ryandgoulding@gmail.com>