Clarify some details of the May15 deadline
Bugfix: May15: Avoid referring to bitcoind as "command-line", since it fails to meet basic reasonable expectations for CLI software
May15: There is no need to explicitly set the log directory
May15: Increase recommended max locks to 537000, which is necessary to safely survive reorganizations up to 5 blocks deep
May15: Mention backport option
May15: Update notice time
Merge pull request #179 from luke-jr/073rc3_backports

Update May15 page with backports