Adds option to exclude validators for monitors in configuration.
Validators can be excluded by adding the "validators" property to a monitor and listing the names of the validators to be excluded in an array called "excludes"inside indside of "validators".

Example:

"numenta/experiments": {
    "username": "numenta-ci",
    "password": "CHANGE ME",
    "contributors": "http://numenta.org/resources/contributors.csv",
    "validators": {
        "excludes": [
            "Travis Validator"
        ]
    }
}
Small improvement.
Merge remote-tracking branch 'upstream/master' into ValidationConfig
Adds target_url.
Merge remote-tracking branch 'upstream/master' into TravisCILink
Bug fix.
Merge remote-tracking branch 'upstream/master' into ValidationConfig
Adds default priority for validators. + small improvements
Merge pull request #11 from carlfriess/ValidationConfig

Adds option to exclude validators for monitors in configuration.
Merge remote-tracking branch 'upstream/master' into TravisCILink

Conflicts:
	utils/shaValidator.js
Merge pull request #14 from carlfriess/TravisCILink

Adds target_url.
Adds reporter for contributers and number of contributions.
Small improvements.
Small improvements.
Tabs to spaces.
Enforcing 82 char line length.
Simplifying conditions.
Simplifying conditions.
Removed unnecessary wqinitialization.
Modularizing code by extracting well-named functions with single responsibilities.