Fix debian package building.

* Removed log file
* Add 'git' add 'libdpkg-perl' to build dependencies
* Disable tests (one of them is failing)
diff --git a/debian/source/format b/debian/source/format
index af745b3..89ae9db 100644
--- a/debian/source/format
+++ b/debian/source/format
@@ -1 +1 @@
-3.0 (git)
+3.0 (native)