Fix typo in constructor

lib/errors/errors.coffee

@@ -2,7 +2,7 @@ TypedError = require('typed-error')
 log = require('../log/log')
 
 exports.NotFound = class NotFound extends TypedError
-	contructor: (name) ->
+	constructor: (name) ->
 		@message = "Couldn't find #{name}"
 
 exports.handle = (error, exit = true) ->

lib/errors/errors.spec.coffee

@@ -47,3 +47,11 @@ describe 'Errors:', ->
 		it 'should not exit if the last parameter is false', ->
 			checkProcessExitOption false, (processExitStub) ->
 				expect(processExitStub).to.not.have.been.called
+
+	describe 'NotFound', ->
+
+		it 'should get a custom message', ->
+			message = 'Foo'
+			error = new errors.NotFound(message)
+			expect(error.message).to.not.equal(message)
+			expect(error.message).to.contain(message)