static and serveIndex default directories added to programmatic API

path.resolve used on mock module path to guarantee absolute path. Fixes #25

lib/local-web-server.js

@@ -59,6 +59,8 @@ function localWebServer (options) {
     log.format = 'none'
   }
 
+  if (!options.static.root) options.static.root = process.cwd()
+  if (!options.serveIndex.path) options.serveIndex.path = process.cwd()
   options.rewrite = arrayify(options.rewrite)
   options.forbid = arrayify(options.forbid)
   options.mocks = arrayify(options.mocks)
@@ -148,7 +150,7 @@ function localWebServer (options) {
   /* Mock Responses */
   options.mocks.forEach(mock => {
     if (mock.module) {
-      mock.responses = require(path.join(options.static.root, mock.module))
+      mock.responses = require(path.resolve(path.join(options.static.root, mock.module)))
     }
 
     if (mock.responses) {