Add param outputter to cache runner functions to specify salt.output

[arnisoph]

This should be seen as a not-so-ugly workaround until --out arrives for all runners and doesn't change default behavior.

Example:

# salt-run cache.grains minion.domain.de
minion.domain.de:
    ----------
    SSDs:
    biosreleasedate:
        01/01/2011
    biosversion:
        Bochs
    cpu_flags:
        - fpu
        - de
        - pse
        - tsc
        - msr
        - pae
        - mce
        - cx8
[...]

# salt-run cache.grains minion.domain.de outputter=raw
{'minion.domain.de': {'biosversion': 'Bochs', 'kernel': 'Linux', ...}}

Working around #9444.

[ghost]

Test PASSed.
Refer to this link for build results: http://jenkins.saltstack.com/job/salt-pr-build/8247/

[thatch45]

I guess, we really need to fix up the runner system to be entirely event bus powered, then it will be truly async and the outputter thing will work, I need to get that on the list for Lithium