prepare for 0.13.0
- if no snapshots extist yet, still output something sensible still
the string needs another space at the beginning for a match
and one at the end
Merge pull request #100 from oetiker/znapzerofix

- if no snapshots extist yet, still output something sensible still
added note on :
Merge branch 'master' of github.com:oetiker/znapzend