boinc_api.h

- update_versions: use __ (not :) as separator for plan class
- client: add plan_class to APP_VERSION;
    an app version is now identified by platform/version/plan_class
- client CPU scheduler: don't assume apps use 1 CPU
- client: add avg_ncpus, max_cpus, flops, cmdline to RESULT
- scheduler: implement app planning scheme

Other changes:

- client: if symlink() fails, make a XML soft link instead
    (for Unix running off a FAT32 FS)
- client: don't accept nonpositive resource share from AMS
- daemons and DB: check for error returns from enumerations,
    and exit if so.  Thus, if the MySQL server goes down,
    all the daemons will soon exit.
    The cron script will restart them every 5 min,
    so when the DB server comes back up so will the project.
- web: show empty max CPU % as ---
- API: get rid of all_threads_cpu_time option (always the case now)


svn path=/trunk/boinc/; revision=14966