Don't fail on sqlite connection uris without a missing trailing slash

lib/sequelize.js

@@ -56,7 +56,12 @@ module.exports = (function() {
     if (arguments.length === 1 || (arguments.length === 2 && typeof username === 'object')) {
       options = username || {}
       urlParts = url.parse(arguments[0])
+
+      // SQLite don't have DB in connection url
+      if (urlParts.path) {
         database = urlParts.path.replace(/^\//,  '')
+      }
+
       dialect = urlParts.protocol
       options.dialect = urlParts.protocol.replace(/:$/, '')
       options.host = urlParts.hostname

test/sequelize.test.js

@@ -40,6 +40,15 @@ describe(Support.getTestDialectTeaser("Sequelize"), function () {
       expect(sequelize.config.host).to.equal('127.0.0.1')
       done()
     })
+
+    if (dialect === 'sqlite') {
+      it('should work with connection strings (1)', function () {
+        var sequelize = new Sequelize('sqlite://test.sqlite')
+      })
+      it('should work with connection strings (2)', function () {
+        var sequelize = new Sequelize('sqlite://test.sqlite/')
+      })
+    }
   })
 
   if (dialect !== 'sqlite') {