FreeSerif lacks glyphs in bold/italic variants that it has in the normal one. A
lot of our glyph fallback infrastructure, especially the caches don't expect
that a normal variant of a font with extra emboldening or extra font skew can
be a fallback for a bold/italic variant of itself which exists, but doesn't
have the missing glyphs that the normal one does.

We really need to improve our glyph/font caching, but we can get 90% of the
way there by excluding such cases from the caches.

Rename "shellnew" to "shlnew", and "2shellnew" then to "2shlnew" for
consistency.

See code in olenv/bin/modules/installer/windows/directory.pm:
create_unique_directorynames().

(Actually I think we don't even create any actual directory for
"shellnew" (and "2shellnew" even less), it is just a
placeholder... But oh well.)

Yeah, should really factor out this snippet into some header file. It
is already in premac.h, but I think premac.h can't be included as such
in all the places where this copy-pasted snippet now is. Need to
experiment.

registrymodifications.xcu has been moved to the solver ( unittest/user/data )
new OOO_CONFIG_REGISTRY_EXTRA_DIR env var will be used to specify the directory 'data' will be contained in so we can override various config items.

Also added license header.

you can now use e.g. thisComponent.sheets(0).namedRanges