Adds newline between source and package definition

Also updates doc/release-process.md instructions for the
Debian package and Gitian descriptor.

contrib/DEBIAN/control

@@ -9,6 +9,7 @@ Build-Depends: autoconf, automake, bsdmainutils, build-essential
  unzip, wget, zlib1g-dev
 Vcs-Git: git@github.com:zcash/zcash.git
 Vcs-Browser: https://github.com/zcash/zcash
+
 Package: zcash
 Version: 1.0.0-rc1
 Architecture: amd64

doc/release-process.md

@@ -35,6 +35,9 @@ previous release:
     doc/README.md
     src/clientversion.h
     configure.ac
+    contrib/DEBIAN/control
+    contrib/gitian-descriptors/gitian-linux.yml
+
 
 In `configure.ac` and `clientversion.h`:
 
@@ -56,6 +59,14 @@ git shortlog helps a lot, for example:
     $ git shortlog --no-merges v${ZCASH_RELEASE_PREV}..HEAD \
         > ./doc/release-notes/release-notes-${ZCASH_RELEASE}.md
 
+Update the Debian package changelog:
+
+    export DEBVERSION='1.0.0-rc1'
+    export DEBEMAIL="${DEBEMAIL:-team@z.cash}"
+    export DEBFULLNAME="${DEBFULLNAME:-Zcash Company}"
+
+    dch -v $DEBVERSION -D jessie -c contrib/DEBIAN/changelog
+
 ### B3. change the network magics
 
 If this release breaks backwards compatibility, change the network magic