Added .gitignore (based on the result of git svn show-ignore against the old google code repo).

Author: harawata

.gitignore

@@ -0,0 +1,18 @@
+/*.iml
+/*.ipr
+/*.iws
+/.classpath
+/.idea
+/.project
+/.settings
+/derby.log
+/ibderby
+/nb*
+/release.properties
+/target
+/test.db.lck
+/test.db.log
+/test.db.properties
+/test.db.script
+/test.db.tmp
+/src/docbkx