Initial pass at importer config validator and unit tests
Renamed to better illustrate the specific library to which it applies
Flushed out unit test coverage to 100%
Adding a non-negative integer parser and using it for the "--retain-old-count", which should be allowed to have a value of 0.
very minor fixes to docs
Merge pull request #481 from pulp/mhrivnak-nonneg_parser

Adding a non-negative integer parser and using it for the "--retain-old-...
Merge pull request #482 from pulp/mhrivnak-doctweaks

very minor fixes to docs
Added feed validation
Changed to constant
Merge pull request #483 from pulp/jdob-validate

Added config validation for the standard importer config
latest versin of nectar
Automatic commit of package [python-nectar] minor release [0.90.3-1].
Automatic commit of package [pulp] release [2.2.0-0.9.alpha].
Automatic commit of package [pulp-builtins] release [2.2.0-0.9.alpha].
Automatic commit of package [pulp-nodes] release [2.2.0-0.9.alpha].
removed nectar release from spec
latest nectar
Automatic commit of package [python-nectar] minor release [0.90.3-2].
Automatic commit of package [pulp] release [2.2.0-0.10.alpha].
Automatic commit of package [pulp-builtins] release [2.2.0-0.10.alpha].