debian: Switch to the 3.0 git format, update version, fix depends
Switch to the git format as this can generate the source directly
from the git checkout. Increase the version number to 0.1.27 as this
is the latest tag, depend on autoconf, automake and libtool and use
autoreconf when building to be able to directly build from a git
clone.
diff --git a/debian/source/format b/debian/source/format
index 163aaf8..af745b3 100644
--- a/debian/source/format
+++ b/debian/source/format
@@ -1 +1 @@
-3.0 (quilt)
+3.0 (git)