Lee Hinman c70f6d0171 Add Groovy as a scripting language, add sandboxing for Groovy
Sandboxes the groovy scripting language with multiple configurable
whitelists:

`script.groovy.sandbox.receiver_whitelist`: comma-separated list of string
classes for objects that may have methods invoked.
`script.groovy.sandbox.package_whitelist`: comma-separated list of
packages under which new objects may be constructed.
`script.groovy.sandbox.class_whitelist` comma-separated list of classes
that are allowed to be constructed.

As well as a method blacklist:

`script.groovy.sandbox.method_blacklist`: comma-separated list of
methods that are never allowed to be invoked, regardless of target
object.

The sandbox can be entirely disabled by setting:

`script.groovy.sandbox.enabled: false`
2014-06-20 10:20:16 +02:00
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2014-02-27 15:12:02 +01:00
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