Make sure Testing directory is there for XUnit output. Stop VS regenerating test files every time. Re #2525.

provided an option Invisible Workspaces to Options tab.
Now MantidPlot won't display workspaces which have been prefixed with 
two successive underscores(__)

Fix problems with the script window positioning and closing when in the preferences dialog. Fixes #1841 and Re #2258

refs #2515 - mantidplot IDA interface, apply corrections tab, move underlying python to IndirectDataAnalysis.py (should let it be run on all platforms), allow for selection of either file or workspace for sample & container, allow for user not to use calculated corrections.

Fix silly issue with Shift+A blocking the Python interpreter when a graph holds focus. The shortcut has been changed to be in line with the others relating to graph dialogs and uses Alt rather than Shift. It is now Alt+A. Fixes #1298. Apologies for ignoring a blocker but it got moved to 28 before I saw it.

Fixes #2444: More accurate memory reporting for ragged X bins. Also, made getMemorySize() return bytes instead of KB.

Added more unit tests
Tested that Mike's script works

re #2375

Refs #2448: Re-added LoadSNSEventNexusTest, which no longer hangs (on my system at least) due to better handling of exceptions thrown inside a CRITICAL block.

Remove time from GUI. The VisIT framework does not allow us to adapt time once it has been set in the reader/database.