Fixes Issue #64 - Modules all appear offline after a server restart

src/eve-server/ship/Ship.cpp
* ShipGetState(): removed wrong commented out code and created and populated a std::vector<InventoryItemRef> to contain refs to all modules fitted to this ship, then inserted <itemID,GetItemStatusRows()> pairs for all modules on this ship into the dictionary for "shipState" as part of GetAllInfo call.

src/eve-server/ship/ModuleManager.h
* GetModuleListOfRefs() - new methods in both ModuleManager and ModuleContainer classes to return a std::vector<InventoryItemRef> of all modules fitted to the ship

src/eve-server/ship/ModuleManager.cpp
* GetModuleListOfRefs() - new methods in both ModuleManager and ModuleContainer classes to provide this list of modules' InventoryItemRefs to the caller
* ModuleManager constructor modified to call Online() or Offline() based on now loaded state of each module's InventoryItemRef 'AttrIsOnline' attribute

src/inventory/InventoryItem.cpp
* correctly and now fully defined InventoryItem::GetItemStatusRow() method that was returning 0 for all values in this PyPackedRow.

src/inventory/EVEAttributeMgr.h
* had to create a const version of the AttributeMap::HasAttribute() method to be allowed to be used in InventoryItem::GetItemStatusRow() method

src/inventory/EVEAttributeMgr.cpp
* created method for const version of HasAttribute() and added comments to it, its non-const version, and both const and non-const version of the GetAttribute() method to clarify that the code in each const vs non-const version of the methods MUST BE IDENTICAL as a warning to anyone making changes to make them the same way in both places, i hate const that you cannot just call one from the other, but have to have duplicate code.  If anyone knows how to do that, please submit a change for it :)

src/eve-server/dogmaim/DogmaIMService.cpp
* nicely commented each section of the main dictionary that gets created as the response to the DogmaIMBound::Handle_GetAllInfo() service call
* no real extra functional code was needed here in order to fix this problem