I've just spent two days rewriting the Action Editor to unify its code and bring it under control again (it was 107kb, now it is around 73 kb).
* This means that there are no longer separate functions for each tool for Actions and Shapekeys in the Action Editor, and also no more missing tools for either.
* Also, I've gotten rid of the need for those complicated, hierarchial loops used for action channels, as they were a pain to keep consistent with each other.
* Baking functions have been removed. See user-level-changes for more details.
* Reorganised and completely rewrote code in editaction.c, thus the lengthy diff.
User Level Changes:
* For the meantime, border-selecting Action Channels has been disabled
* Baking functions have been removed. As far as I have been able to find out, these were really non-functional anyway. Besides, I don't think they really belonged in editaction.c
* Editing Shapekey keyframes now yields the same feature set as for those in Action Channels.
* There shouldn't be any major bugs left, but I might have missed something.
Further Work:
* Do a cleanup like this to the Action Editor drawing code in drawaction.c
* Baking??? (harkyman seems to be doing something about this)
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