basic implementation simple meta-params in param_info.in and their use in config files. #4031
this patch also includes changes to condor_config_val to show meta-param values and to
indicate the meta-param source for an active config param.
===VersionHistory:Pending===
This test is capable of stand alone use in a configured condor.
Pains are take to restore the condor_config.local file even
in cases where we stop with a possible error. As we set
logging config knobs we reset to default ones we may have
changed in the test before like the number of log files. #3948
Merge branch 'master' of ssh://ingwe.cs.wisc.edu/p/condor/repository/CONDOR_SRC