Michael:
-- upgrade of libsigc version to 1.4/1.3 whatever the release version
-ends up getting called.
- GUII
-- Gtkmm2 frontend.
Lgb:
- upgrade boost
- textclass as string
- force arg check on lyxfuns
- move towards no-next code in paragraph,cursor and row.
-- remove 1.2.x compability code.