Change AlgorithmManager to store a Proxy version of the algorithm

[Nick Draper]

Reason for change: This allows the actual algorithm class to be destroyed and any memory used reclaimed. Only the vital information such as property values would be maintained.

The Proxy, which I believe we can make completely generic to all algorithms should store all of the parameters that the original algorithm held.

It should still support the IAlgorithm interface. Except that for initialise and execute the code would have to first create the underlying algorithm, share the property managers and then pass through the original request.

The property Manager inheritance within Algorithm should be extracted and encapsulated in the PropertyManagerOwner class. This would in effect allow the same operations while holding the underlying property Manager as a shared pointer, therefore allowing both the proxy and the algorithm itself to share a PropertyManager.

The IPropertyManager class will ensure the methods of the various implementations stay consistent.

The attached uml diagram should help explain this otherwise come and talk to me.

[Roman Tolchenov]

(In [2146]) Windows installer looks for Python both in HKLM and HKCU of the registry. re#464

[Martyn Gigg]

(In [2151]) Minor fix to installer script. Re #464

[Roman Tolchenov]

(In [2162]) AlgorithmProxy class is added. References to Algorithm are replaced to IAlgorithm in many cases. re #464

[Roman Tolchenov]

(In [2163]) Forgotten file. re #464

[Roman Tolchenov]

(In [2164]) try to fix linux build re #464

[Russell Taylor]

(In [2165]) Adjust some template function specialisations to point to IPropertyManager. Re #464.

[Roman Tolchenov]

(In [2166]) another try. re #464

[Roman Tolchenov]

(In [2171]) Fixing PythonFrameworkTest. re #464

[Roman Tolchenov]

(In [2175]) This should fix MantidPlot crashes. re #464

[Roman Tolchenov]

(In [2181]) Changed AlgorithmProxy::executeAsync(). Removed a few doxygen warnings. re #464

[Martyn Gigg]

(In [2192]) The PythonFrameworkTest had been failing on the Linux build server with a Poco exception due to libraries trying to be loaded from a non-existent location. The LibraryManager now checks that the path it is trying to load actually exists. Re #464

[Roman Tolchenov]

(In [2193]) AlogorithmProxy tests. More doxygen. re #464

[Stuart Campbell]

This ticket has been transferred to github issue ​1312