Creating 4.2 branch
Setting version for tag
4.2 branch reopen for checkins
Fixed document typo and download link
Bug Fix for 686

The staged executable need the externally accessible path.
For the job itself we use the internal path.
PM-688

Fix for the setup of monitord logs by pegasus-dagman
rotation is only done by pegasus-dagman.
PM-689

copied revision 6044 to branch 4.2
we now take rotate the stamepde sqlite db in case of monitord starting in recovery mode i.e when it gets killed and then started by pegasus-dagman again.

Added log messages when rotation of jobstate.log happens in recovery mode or replay mode
and some comments to make things clearer.
Merge branch '4.2'