emacs-cond-let release 0.2.1-1 for unstable

[dgit distro=debian split --quilt=linear]
[dgit please-upload source=emacs-cond-let version=0.2.1-1 upstream-tag=v0.2.1 upstream=0430bd1eb3493ea90d69feb6b7eb7dac3e10d0ba]