Patch level release checklist

doc/patchlevel-checklist.txt

@@ -0,0 +1,27 @@
+Given:
+ VERSION (e.g. 2015.03-1)
+
+o Make sure we have a $VERSION branch. If not, create one
+
+o Update VERSION and VERSIONDATE in
+  openscad.pro
+  scripts/publish-macosx.sh
+  scripts/release-common.sh
+  scripts/publish-mingw-x.sh
+  tests/CMakeLists.txt
+  
+o git tag "openscad-$VERSION"
+o ./scripts/git-archive-all.py --prefix=openscad-$VERSION/ openscad-$VERSION.src.tar.gz
+o git push --tags $VERSION
+o Upload Source package
+  $ scp openscad-$VERSION.src.tar.gz openscad@files.openscad.org:www
+o Write short release email to mailing list
+o Tweet as OpenSCAD
+o Notify package managers
+  - Debian/Ubuntu: https://launchpad.net/~chrysn
+  - Ubuntu PPA: https://github.com/hyperair
+  - Fedora: Miro Hrončok <miro@hroncok.cz> or <mhroncok@redhat.com>
+  - OpenSUSE: Pavol Rusnak <prusnak@opensuse.org>
+  - Arch Linux: Kyle Keen <keenerd@gmail.com>
+  - MacPorts: https://svn.macports.org/repository/macports/trunk/dports/science/openscad/Portfile
+  - Homebrew: https://github.com/caskroom/homebrew-cask/blob/master/Casks/openscad.rb