Add slice number to job name

When submitting several jobs with different slices otherwise the SGE queue
was quite confused...
sls/work version of stacked scan
added optionparser to stacked scan and the ability to adjust the correction factor, removed all of the old command line garbage
adding the option to put in the number of blocks or scans to make
updating grecoman (it did not even start before) and adding the rsync command from the wiki
updated multiscanViewer to work with scans in different directories using the -s argument, added a new script to process the command_list.txt to fix arguments (could be useful for resubmitting all reconstructions with same min and max values etc)
Merge branch 'master' of https://bitbucket.org/psitomcat/beamline-scripts
README.md edited online with Bitbucket
Hardcoding path to prj2sinSGE

On x02da-cons-2, the link did not work anymore, so I hardcoded the call to 'prj2sinSGE' to the place where it actually resides.
Adapt retrieval script to new tape archive server

According to Heiners email from Sept 11, 2014 we should not use node 6 anymore, but use xbl-archive.

resolves #5
Merge branch 'master' of https://bitbucket.org/psitomcat/beamline-scripts