upgrade OS X FUSE to 3.0.9, update release todo docs

Vagrantfile

@@ -55,9 +55,9 @@ end
 def packages_darwin
   return <<-EOF
     # get osxfuse 3.0.x pre-release code from github:
-    curl -s -L https://github.com/osxfuse/osxfuse/releases/download/osxfuse-3.0.5/osxfuse-3.0.5.dmg >osxfuse.dmg
+    curl -s -L https://github.com/osxfuse/osxfuse/releases/download/osxfuse-3.0.9/osxfuse-3.0.9.dmg >osxfuse.dmg
     MOUNTDIR=$(echo `hdiutil mount osxfuse.dmg | tail -1 | awk '{$1="" ; print $0}'` | xargs -0 echo) \
-    && sudo installer -pkg "${MOUNTDIR}/Extras/FUSE for OS X 3.0.5.pkg" -target /
+    && sudo installer -pkg "${MOUNTDIR}/Extras/FUSE for OS X 3.0.9.pkg" -target /
     sudo chown -R vagrant /usr/local  # brew must be able to create stuff here
     ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
     brew update

docs/development.rst

@@ -170,4 +170,7 @@ Checklist:
 
 - create a Github release, include:
   * standalone binaries (see above for how to create them)
+    + for OS X, document the OS X Fuse version in the README of the binaries.
+      OS X FUSE uses a kernel extension that needs to be compatible with the
+      code contained in the binary.
   * a link to ``CHANGES.rst``