add update_* to most packages starting with "j".

srcpkgs/jack/template

@@ -10,6 +10,8 @@ short_desc="JACK Audio Connection Kit low-latency sound server (pro audio)"
 maintainer="Juan RP <xtraeme@gmail.com>"
 license="GPL-2, LGPL-2.1"
 homepage="http://jackaudio.org/"
+update_site="http://jackaudio.org/downloads/"
+update_ignore="OSX*"
 distfiles="https://dl.dropboxusercontent.com/u/28869550/jack-${version}.tar.bz2"
 checksum=5bc6336e6ac9799e3cb241915e2ba5d01b030589bbb2afae39579a59ef0f2f56
 

srcpkgs/java-commons-io/template

@@ -5,6 +5,7 @@ version=2.4
 revision=3
 maintainer="Carlo Dormeletti <carloDOTdormelettiATaliceDOTit>"
 homepage="http://commons.apache.org/io"
+update_pkgname="${_origname}"
 license="Apache-2.0"
 short_desc="IO related classes for Java."
 hostmakedepends="oracle-jdk apache-ant"

srcpkgs/json-c/template

@@ -8,6 +8,7 @@ short_desc="A JSON implementation in C"
 maintainer="Juan RP <xtraeme@gmail.com>"
 license="MIT"
 homepage="http://oss.metaparadigm.com/$pkgname"
+update_site="https://s3.amazonaws.com/json-c_releases"
 distfiles="https://s3.amazonaws.com/json-c_releases/releases/$pkgname-$version.tar.gz"
 checksum=000c01b2b3f82dcb4261751eb71f1b084404fb7d6a282f06074d3c17078b9f3f
 

srcpkgs/jupp/template

@@ -17,6 +17,7 @@ short_desc="Portable version of JOE’s Own Editor"
 maintainer="Ypnose <linuxienATlegtuxDOTorg>"
 license="GPL-1"
 homepage="https://www.mirbsd.org/jupp.htm"
+update_pkgname="joe"
 distfiles="https://www.mirbsd.org/MirOS/dist/${pkgname}/joe-${version}.tgz"
 checksum=80374fbd69c4b827ba33761c669dfcddab7222755bfb858600528bb8d6b98e6f