added .gitignore

git-svn-id: https://svn.apache.org/repos/asf/maven/resources/trunk@1831418 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..f79c928
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,15 @@
+target/
+.project
+.classpath
+.settings/
+.svn/
+bin/
+# Intellij
+*.ipr
+*.iml
+.idea
+out/
+.DS_Store
+/bootstrap
+/dependencies.xml
+.java-version