Convert svn:ignore properties to .gitignore.

.gitignore

+.classpath
+.project
+.settings
+/bin
+/build
+/data
+/save
+/target
+unprocessed-commands.txt
+/config/hibernate.cfg.xml
+/config/mycore.private.properties
+/config/log4j2.xml
+/config/persistence.xml
+/config/pom.xml