debianize

- fix make version on debian
- update gitignore
- add aptly-api and service
- install zsh completion
- add debug package
- move aptly data from orig deb package
- do not add shell for service user
- use 8080 as default port

.gitignore

@@ -52,3 +52,21 @@ pgp/keyrings/.#*
 *.creds
 
 .go/
+obj-x86_64-linux-gnu/
+
+# debian
+debian/.debhelper/
+debian/aptly.debhelper.log
+debian/aptly.postrm.debhelper
+debian/aptly.substvars
+debian/aptly/
+debian/debhelper-build-stamp
+debian/files
+debian/aptly-api/
+debian/aptly-api.debhelper.log
+debian/aptly-api.postrm.debhelper
+debian/aptly-api.substvars
+debian/aptly-dbg.debhelper.log
+debian/aptly-dbg.substvars
+debian/aptly-dbg/
+