Add ScriptingContainer accessors for ProfileOutput

The ScriptingContainer currently has accessors for ProfilingMode,
but not for ProfileOutput.  This commit simply adds accessors for
ProfileOutput so that it is possible to programatically control
the destination of profiling data.
Merge pull request #1935 from cprice404/maint/jruby-1_7/sc-set-profiling-output

Add ScriptingContainer accessors for ProfileOutput