by using the ADS::retrieveWS<Type>() method.

Refs #2408: Multiply now correctly handles commutativity with EventWorkspaces. Tests made significantly more robust.

Tell scons to build the new TestHelpers package so that ISIS buildservers are still happy with moving the test helpers while the CMake transition is still in progress. Refs #2196 and #1881

Rename Framework code directory to just that. Also delete Main and VS & Eclipse project file. Re #1881.

Refs #1455: on Linux, at least, qtiplot build raises many many warnings when a function returns a const int; changed Algorithm's version() function to return just an int. These raise 'type qualifiers ignored on function return type' because the const on the return value is superfluous, according to: http://stackoverflow.com/questions/1134237/pedantic-gcc-warning-type-qualifiers-on-function-return-type 

Added eventworkspaces to AddSampleLogTest and ChainedOperatorTest

re #351. A change to the workspace hierarchy. What used to be Workspace is now called MatrixWorkspace. New Workspace is a base class for MatrixWorkspace and TableWorkspace. TableWorkspace can be stored in AnalysisDataService and passed to algorithms as a property.

Workspace single value now works in +,-,*,/ and the relevant operator overloads

Refs #123. Fixed tests. Also changed workspace so it does not include workspaceFactory which includes workspace, which includes workspaceFactory... 

moved macro into Algorithm.h put AlgorithmFactory::subscribe back into .h, extra test errors removed

Altered Plus, Minus, Multiply and Divide to inherit from BinaryOperation and CommutativeBinaryOperation.  BinaryOpHelper has been removed.
Triple Iterator can now loop iterate in both orientations (although this has imposed a small (<10%) performance hit.
The operations can now add heterogenous workspaces in both orientations.

This should even be possible (This is now tested!)
Worskspace_sptr wsResult = (ws1+ws2)/(ws1-ws2);