Initialize cb[Src|Dst]LengthUsed to 0 before calling into codec,
required by (some?) native codecs.

(suggested by Michael Ost).

Ignore the TRANSFORMS variable when building a list of transforms for
advertising.  The variable is used to apply transforms when installing.

Allow MaskedEdit masks that aren't enclosed with <>.
Allow the MaskedEdit's edit controls to scroll a bit in case things
don't line up.

Move code and function prototypes around to eliminate forward
declarations.  No code is changed.

Move history and internet tmp files to Local Settings.

Store bitmaps and bitmaps always in separate fields in the internal
menu structure.  Get rid of a lot of assumptions in the code that the
menu can have strings only when it is not some other type and that
bitmaps come in two flavors.
Add a lot of conformance tests, including some submitted by Jason
Edmeades.