* clutter/clutter-effect.[ch]: Update the effects API to remove
the start value for most of them.
(clutter_effect_move): Make it a simple "move from current
position to new coordinates" effect.
(clutter_effect_path): Rename from clutter_effect_move().
(clutter_effect_rotate): Sync up with the new actor rotation API.
* tests/test-effects.c: Regression test for the effects.
* tests/Makefile.am: Build glue for test-effects
* tests/test-behave.c: Emulate a full ramp by using a looping
timeline changing its direction when reaching the last frame.
Most of these fixes are simple symbol shadowing issues, like index and the
braindead y0 and y1 extern symbols exported by math.h on GNU libc systems.
There is a masking issue in ClutterTexture which should be checked; I ran
the tests and everything looked fine.
The rest are just unused variables.
* clutter/clutter-actor.h:
* clutter/clutter-stage.h: Add 32 padding slots; when we
reach 1.0 it'll be a long road until the following ABI
break.
* tests/test-behave.c: Don't forget to include headers.
