Fixing phpstorm project files.

.gitignore

@@ -2,7 +2,6 @@ vendor
 composer.lock
 coverage_report
 .idea/*.iws
-.idea/*.iml
 .idea/workspace.xml
 .idea/tasks.xml
 .DS_Store

.idea/shipping.iml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/tests" isTestSource="true" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
+