Preliminary IDF for HIFI (copy of MUSR). Delete comment referring to different IDF in MUSR. re #1849

Improvement to MuonAnalysis including link up most of Plot Option functionality and grouping of plotted workspaces. re #1849

Applying all changes back again - found problem.  I was passing Ei to the ConvertUnits command.  I don't understand, but it works! refs #2326

Handle the fact that Apple decided to put the OpenGL headers in a different place to everyone else. (This was originally handled on the Mac build server by just copying the headers into Third_Party. I am suitably ashamed of this.) Re #1133.

Refs #2334: SaveSNSNexus will use slabs for writing large banks, depending on available memory. Speed is still limited by the compression in NXS being single-threaded.

Added flag, average_mono to indicate whether we are going to average the mono vanadium or not.  Added implementation of doing a pixel by pixel mono norm. refs #2326

Some minor changes to neaten up the IDataFileChecker children and to move the static contants that were not attached to anything in particular. Re #2329

There was a "PROPERTIES" missing in the line added on the last commit of this file. Also made the file look neater at the same time. Re #1881.

re #2318

re #1772 - indirect cte - do no load log files for raw data, as this makes reading files from network drives impossibly slow

The run files widget now has optional workspace entry selection boxes. It now checks if a non-run files exists and looks for files less frequently to lock the GUI less re #2337

Add a compiler flag for windows compilers that have an issue with large objects that are generated by boost::python's template code. Re #1881

Update to the Load algorithm to allow running solely to discover the concrete loader type. Also updated workspace property to respect the optional flag in other cirumstances. Re #2329

Refs #2334: Slabs for writing SNS histogrammed nexus files (currently disabled). Parallelized part of the algorithm for speed-up.

Eliminate data loading from a couple of test constructors. Also eliminate setUp method in several places. Re #2221.

Fixes #2074: run_start property when loading SNS files will allow the right instrument definition to be loaded.