Add links to youtrack issues

.gitignore

@@ -9,6 +9,7 @@
 !/.idea/fileTemplates
 !/.idea/runConfigurations
 !/.idea/codeStyles
+!/.idea/vcs.xml
 
 **/build/
 **/out/

.idea/vcs.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="IssueNavigationConfiguration">
+    <option name="links">
+      <list>
+        <IssueNavigationLink>
+          <option name="issueRegexp" value="[A-Z]+\-\d+" />
+          <option name="linkRegexp" value="https://youtrack.jetbrains.com/issue/$0" />
+        </IssueNavigationLink>
+      </list>
+    </option>
+  </component>
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>