[mapguide-internals] Some code fixes for RFC 60

[Walt Welton-Lair]

UV,

Two fixes:

* Change your GetResourceServiceForMapDef method in ServerTileService to simply return an MgResourceService* (properly addref'ed) and not a smart-pointer.  We don't have any methods which return smart-pointers.  It's up to the calling code to decide if it wants to wrap the method's return value in a smart-pointer.

* In MapLayer/Map.cpp you have numerous memory leaks.  You allocate a new STRCOLORLIST (assigning it to the m_colorPalette member variable), but don't delete it anywhere.  Instead you only call clear on the list, which isn't the same as deleting the object.  SetColorPalette also leaks any previously allocated m_colorPalette.  I would simply change m_colorPalette to be a STRCOLORLIST instead of a PSTRCOLORLIST.  GetColorPalette then returns the address of m_colorPalette, and SetColorPalette replaces the contents of m_colorPalette with the supplied palette.

Thanks,
Walt

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