Merge pull request #83 from dehaes/master

Update fcMRI plugin and verify spaces and name of variables
re-enable the spinning waiting icon
Merge branch 'master' of https://github.com/FNNDSC/chrisreloaded
merge conflict were not fixed!

221375b700953df57fc7f86edff8b9752a84b460
Launch jobs with ssh -t.
Try system(..) now.
Use exec() in the run scripts.
Use exec instead of shell_exec in launcher_web.php.
Add exit; after sending jobs to mosix.
Switch all shell_exec to exec.
Add the phpseclib submodule.
Configure the paths to phpseclib and use the library in run_mosix.php.
Get rid of all exec calls and work only in the PHP space when launching jobs.

run_local and run_mosix are now obsolete.

Also, use only phpseclib for the SSH connections (no more OS level).
Login via phpseclib rather than sshpass.
Introduce the CLUSTER_SCHEDULER configuration variable to configure the cluster scheduler.

Example usage:
// we replace {MEMORY} with a memory requirement
// and {COMMAND} with the command to schedule
define('CLUSTER_SCHEDULER', 'nohup /bin/mosbatch -q -b -m{MEMORY} {COMMAND}');
Get rid of run_* files.
create ssh connection if needed
get rid of sshpass in the feed.controller
Merge branch 'master' of https://github.com/FNNDSC/chrisreloaded
fix typo