Merge Debian changes into Raspbian packaging. Update changelog with remaining

raspbian-specific changes.

diff --cc debian/changelog
index 0551bed91f5f47a200dadd2cc250f20317e31a1c,6deab157f8079963a4aea9fcc818e152053a70a5..a9fd9c97680e8f3f051b3e61f1980b1a73be1508
--- 1/debian/changelog
--- 2/debian/changelog
+++ b/debian/changelog
@@@ -1,16 -1,11 +1,18 @@@
- pigpio (1.68-2+rpi2) buster-staging; urgency=medium
++pigpio (1.68-3+rpi1) buster-staging; urgency=medium
 +
-   * Only install systemd unit in pigpiod package.
++  * Add back systemd stuff and ensure systemd unit is only installed in pigpiod package.
++  * Add server related packages and metapackage.
 +
-  -- Peter Michael Green <plugwash@raspbian.org>  Fri, 18 Jan 2019 01:52:27 +0000
++ -- Peter Michael Green <plugwash@raspbian.org>  Thu, 24 Jan 2019 13:31:37 +0000
 +
- pigpio (1.68-2+rpi1) buster-staging; urgency=medium
+ pigpio (1.68-3) unstable; urgency=medium
  
    * Fix short description for libpigpiod-if-dev package.
+   * Remove systemd stuff in debian/rules, since we don't ship the server.
    * Fix some screwups in 64-bit patch where PRIX64 was used where PRIXPTR should have been used.
-   * Add back server related packages.
+   * Enable parallel building (Closes: 920142)
  
-  -- Peter Michael Green <plugwash@debian.org>  Wed, 16 Jan 2019 23:17:28 +0000
+  -- Peter Michael Green <plugwash@debian.org>  Thu, 24 Jan 2019 13:25:48 +0000
  
  pigpio (1.68-2) unstable; urgency=medium
  

diff --cc debian/rules
index 2b876a52c79872b2e6228bb68df283adef83cfcc,825288bec437a71be1630b5ce2dcff3a2fd76b0d..9bb1ae3b6001a36d2b95213faa8b6aa9bccac8eb
--- 1/debian/rules
--- 2/debian/rules
+++ b/debian/rules
@@@ -7,7 -7,7 +7,7 @@@ export DEB_BUILD_MAINT_OPTIONS = harden
  export DEB_CFLAGS_MAINT_APPEND = -Wno-format-security
  
  %:
-       dh $@ --with python2,python3,systemd
 -      dh $@ --with python2,python3 --parallel
++      dh $@ --with python2,python3,systemd --parallel
  
  override_dh_clean:
        rm -rf build