Package consistency cleanup

[blakeembrey]

Fix license-url, remove lint script, remove lower-case from README (it seems it never did this but it was documented, added tests to confirm behavior doesn't change in the future).

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (e42461c) to head (73d06db).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master       #66   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines          120       120           
  Branches        39        38    -1     
=========================================
  Hits           120       120           

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[blakeembrey]

The current 1.x says it'll be lower cased but it doesn't actually:

content-type/index.js

Lines 66 to 97 in 8f44754

	function format (obj) {
	if (!obj || typeof obj !== 'object') {
	throw new TypeError('argument obj is required')
	}
	var parameters = obj.parameters
	var type = obj.type
	if (!type || !TYPE_REGEXP.test(type)) {
	throw new TypeError('invalid type')
	}
	var string = type
	// append parameters
	if (parameters && typeof parameters === 'object') {
	var param
	var params = Object.keys(parameters).sort()
	for (var i = 0; i < params.length; i++) {
	param = params[i]
	if (!TOKEN_REGEXP.test(param)) {
	throw new TypeError('invalid parameter name')
	}
	string += '; ' + param + '=' + qstring(parameters[param])
	}
	}
	return string
	}

[sheplu]

LGTM