Support Ubuntu's "devel" alias

Makefile

@@ -217,6 +217,7 @@ install-hooks:
 	-cd ${prefix}/usr/share/xen-tools/ && ln -s karmic.d wily.d
 	-cd ${prefix}/usr/share/xen-tools/ && ln -s karmic.d xenial.d
 	-cd ${prefix}/usr/share/xen-tools/ && ln -s karmic.d yakkety.d
+	-cd ${prefix}/usr/share/xen-tools/ && ln -s karmic.d devel.d
 	cp hooks/common.sh ${prefix}/usr/share/xen-tools
 	cp -r hooks/common ${prefix}/usr/share/xen-tools
 

NEWS.markdown

@@ -14,6 +14,7 @@ Distribution Releases Changes
 * Preliminary support for Ubuntu 16.10 Yakkety Yak.
 * Knows about code names for Debian 10 (Buster) and 11 (Bullseye).
 * Considers Debian Squeeze, Ubuntu Vivid and Wily being EoL.
+* Knows about Ubuntu's "devel" alias.
 
 Other Changes
 -------------

debian/changelog

@@ -7,6 +7,7 @@ xen-tools (4.6.3~dev-1) UNRELEASED; urgency=medium
     + Fixes typo found by lintian.
     + Preliminary support for Ubuntu 16.10 Yakkety Yak.
     + Knows future Debian release names Buster (10) and Bullseye (11).
+    + Knows about Ubuntu's "devel" alias.
   * Declare compliance with Debian Policy 3.9.8. (No changes needed.)
   * Use NEWS.markdown as upstream changelog, don't install it as docs.
 

etc/distributions.conf

@@ -46,3 +46,5 @@ vivid        = ubuntu eol pygrub
 wily         = ubuntu eol pygrub
 xenial       = ubuntu     pygrub
 yakkety      = ubuntu     pygrub
+
+devel        = ubuntu     pygrub