Add rudimentary generation of a ZIP file.
Add link for data export on experiments#show.
Add generation of directories for subsystems of each shot.
Add javascript files for testing AJAX update polling.
Add stalker gem for background execution using beanstalkd.
Implement background job for packing beamtime data.
Add forgotten background jobs file.
Add communication between background process and javascript (using a status file...)
Implement download of ZIP file after generation.
Write all instancevalue data to the ZIP file now. It works but it's still very slow.
Open separate export/conversion window when pressing on export link.
Gather data in separate directory during experiment export and zip the tree by external "zip" command.

Use number of instancevaluesets as measure for a more fine-grained progressbar.
Try to fix the "window.close" issue....not yet elegantly solved.
Merge branch 'dataexport' of https://github.com/psdb/PSDB into development
Fix small bugs in connection with experiment data export.
Revert most of the changes for Rails 4 (still problems with oracle adaptor)
Update jquery system (gem was split in jqeury and jquery-ui, update of ui css).