Version 6.6.41

* client: fix crashing bug introduced in [18605]
* client (Linux): when launching apps, put a relative path to the executable (../../projects/x/y) into argv[0], not just the executable filename.
* MGR: Fix initial first connection problem on startup.

Version 6.6.40

* client: fix compiler warning (too few args for print format)
* Mac: fix compile breaks
* client (Unix): fix bug that caused GPU reservation to not work. The problem: we were doing the reservation after the fork(), so that the data structure it changed was the app's, not the client's.
* MGR: on Linux, check list of running processes from procinfo_setup() to determine if BOINC core client is running.
* MGR: on Linux, accept 2 optional arguments: -clientdir or -e for directory containing client executable, default is the directory containing the manager executable. -datadir or -d for BOINC data directory, default is the directory containing the client executable. These are used by the manager when launching the client.
* MGR: Bug fixes for Linux.

Version 6.6.39

* client: add a bunch of debugging messages () for showing how GPU instances are being reserved