QUEEN: Move current detection code into separate source file.
QUEEN: Minor cleanup of detection code.
QUEEN: Initial work to migrate to Advanced Detector.

This breaks the detection until the required checksums for each version
are added and/or the fallback detection is fixed.
QUEEN: Add detection entries for Advanced Detector.

Some of the uncompressed language variant entries are missing
currently.
BUILD: Enable RTTI again.
DEVTOOLS: Enable RTTI in create_project generated project files.
SDL: Let SdlGraphicsManager inherit from GraphicsManager.
SDL: Make activateManager/deactivateManager SdlGraphicsManager specific.

We can do this now that we can use virtual inheritance and dynamic_cast
because we enabled RTTI.
SDL: Further small cleanup related to manager switching.
QUEEN: Add further detection entries for Advanced Detector.

These are based on queen.1 file lengths from qtable devtool.
QUEEN: Restore previous detection code as fallback detector.
QUEEN: Switch unknown md5sums in detection entries for NULL.

This tells the advanced detector to skip MD5 validation for this
detection entry, so only filename and size are used as per the
original detection code.
QUEEN: Disable detection entries with unknown MD5sums.

This forces detection of the entries with missing MD5sums via the
fallback detector. This triggers will then trigger a warning
with the associated md5sum for the user to report to the team.
QUEEN: Fix missing GUIO_NOSPEECH flag on Demo and Floppy AD entries.

Also, add missing Spanish DOS CD entry in skeleton form.
QUEEN: Migrate listSaves() function to game target for save naming.
WII: Implement changes needed by DevKitPPC R26 and later

This changes makes ScummVM compilable with newer versions of DevKitPPC. ScummVM can be linked against the original libogc and libfat. That makes some newer WiiMotes work, improves audio-/video-playback and contains various improvements.
BUILD: Rename libunity support variable to "USE_UNITY" instead of "USE_TASKBAR_UNITY".

This makes it consistent with other library support variables.
BUILD: Auto detect taskbar support.

Formerly the taskbar support was *always* enabled except when the backend or
user specified that it should be disabled. This causes nasty crashes for
backends which do not have any taskbar support (like DC, Tizen and probably
more which simply did not disable it so far) when defaultErrorHandler was
called for example (Mass Add is also broken for those).
The SDL (and derived backends) worked around missing taskbar support by
simply faking a dummy taskbar implementation (but still claiming in configure
that we feature taskbar integration, ouch).

To avoid all non-SDL backends from manually specifying _taskbar=no I added
some auto detection code which simply only enables taskbar support in case
ScummVM is built on Win32 or libunity is present.
Merge pull request #413 from AReim1982/master

WII: Implement changes needed by DevKitPPC R26 and later
FULLPIPE: Complete sceneHandler38_animateAlcoholics()