Subject: Update .gitignore from Debian packaging branch

The Debian packaging git branch contains these updates to the upstream
.gitignore file(s).  This patch is autogenerated, to provide these
updates to users of the official Debian archive view of the package.

[dgit (13.17) update-gitignore]
---
diff --git a/.gitignore b/.gitignore
index e8cd177..679b92e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,3 +27,6 @@ stamp-h1
 volume_io/Testing/example_modify
 volume_io/Testing/example_tags
 volume_io/Testing/example_volume_io
+.kdev4/
+build/
+minc-tools.kdev4
