Add tor release date next to version strings in graph legends
I made a regex to extract it from the tor ChangeLog file:
/version (\S+) - (20\d\d-(0[None..None](../compare/None...None)|1[None..None](../compare/None...None))-(0[None..None](../compare/None...None)|[12][None..None](../compare/None...None)|3[01]))/
Trac:
Username: fem