Update the content in README directory

I have just downloaded the latest ROOT version, 6.06/04. In the tar.gz archive, there is a directory named README. In this directory there is a Changelog file for a very old version. The content of the INSTALL file should also be updated in order to take into account the cmake compilation process, …
I did not open other files but maybe they need to be updated as well.


Thanks for your comment! We keep the old Changelogs around; the new ones are in README/ReleaseNotes/version. But you’re right, this is likely more confusing than helpful. I have moved it into README/ReleaseNotes/old

Regarding the INSTALL - thanks, that’s now sft.its.cern.ch/jira/browse/ROOT-8166

Btw, we have a problem with the release machinery; until that’s fixed I have removed the 6.06.04 binaries. They should show up after the CERN break, i.e. on Monday.

Cheers, Axel.