3.0.2 - Security fix: anonymous script execution

Hi,

please create a new 3.0.2 branch based on 3.0.1 tag for which following commit fixes security problem:

Author: Arkadiusz Kita <arkadiusz.kita@gmail.com>
Date:   Sat Nov 30 18:37:06 2013 +0100

    Security fix: anonymous script execution
    
    Fixed major security problem:
    
    * execution of any groovy script with anonymous access on publish CQ instances
    * execution of any groovy script with non-administrative privileges on author CQ instances
    * added "not sufficient privileges" response message for POST groovyconsole servlet

Kind regards,
Arkadiusz Kita