Fixed a similar issue when Matrix Plot toolbar is not activated when a MantidMatrix gets focus. re #1958

 Added some magical code which seems to do the job of getting QMdiArea out of its confused state. re #1958

re#1839 - The problem was commands like Ctrl+C on script interpreter is routed to global editing command handlers in Application window.
Added code to handle Ctrl+C on script widget in the application window copySelection() method.

Application window copySelection() handles copy actions on all windows of type MDISubWindow in Mantidplot and 
if any of these windows is kept opened and a Ctrl+C on script interpreter widget the command was getting routed to application window code.
Fixed this.However when I do paste command (Ctrl+V shortcut ) on script  interpreter it gives an error -conflicting
Ctrl+V shortcut Need to fix this.

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

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.

Fix for the crash that occurred when clicking on a 'View' button on the detector diagnostics results dialog. In fact this happened with any Python call that used the showWindow command. That has now been deprecated and the correct event handler implemented so that show() works. Re #2315

Fixing MantidPlot to find pyqt interfaces. That broke with the last commit on this ticket. Russell, can you confirm that @MANTID_ROOT@ will always be an absolute path (as opposed to being relative to the bin directory as it was before)? Re #1881

The SANS GUI now has a "Manage Directories" button and it handles multi-period files better too. refs #2145 and #2146

re#2136 - Integrated Load algorithm to Mantidplot Interface.Added a new Menu Item File to Load menu.

Script errors reported within the script console in MantidPlot are now cleared to differentiate between separate script runs. Also included the line numbers in the error messages. Fixes #1843

Turns out this problem only exists on Windows. This should fix it. Needs checking with dev installer. Re #2032

Update MantidPlot scripting environment to add the path of a script to its sys.path when opened. This fixes the problem with importing modules in the same directory as a open script but outside the Mantid path. Re #1415

Cleared up some of the handling of messages at the same time. Re #1791

Refs #100: Latest Qt 4.7 does not have QAssistantClient anymore; these were unused anyway so they were commented out.

re #1699 - Some changes to ICat UI- list investigations types and list instruments now saves the data to a vector.Invalid session check is done for list investigation types and list instruments algorithms.
Now if user starts Basic /advanced search even before login it pop up login dialog.

Added Interfaces top menu, filled with current Qt custom interfaces. Menu is now modifiable through Manage Custom Menus. Re #1736

re #1690 - moving the Manage User Directories dialog into MantidQtAPI so that it can be popped up from Custom Interfaces. This has required that the "Other Properties" button on this dialog is removed.

re #1690 - adding new ManageCustomMenus dialog to the File menu in Mantid Plot, to replace the datasearch/defaultsave entries in the View->Preferences->Mantid->Directories window.