Gitignore: Update to ignore additional ide/editors

.gitignore

@@ -1,9 +1,22 @@
-## Generic ignorable patterns and files
-*~
-.*.swp
-*bak*
-tags
-*.vim
-
 ## Files related to minetest development cycle
-*.patch
+/*.patch
+# GNU Patch reject file
+*.rej
+
+## Editors and Development environments
+*~
+*.swp
+*.bak*
+*.orig
+# Vim
+*.vim
+# Kate
+.*.kate-swp
+.swp.*
+# Eclipse (LDT)
+.project
+.settings/
+.buildpath
+.metadata
+# Idea IDE
+.idea/*