removing 2.5 branch

2.5 Notifier:

* Added a general Refresh Tag for the Property-Buttons area, needed if more than 1 property window with the same content is open. Not all RNA properties have a ND_ Notifier yet, so i guess this is the best solution for now.

Blender 2.5 MSVC 9 projectfiles
* maintenance:
** nodes/intern/CMP_nodes/CMP_colorMatte.c
** nodes/intern/CMP_nodes/CMP_distanceMatte.c
** nodes/intern/CMP_nodes/CMP_levels.c
* smoke include dir added to GL_gpu library

2.5 - Rotation Locking for Bones

* Added Transform Locks panel. The layout for rotation I'm not satisfied with yet, though it is the best alternative so far.

* Rotations can now be locked per-component for quats/axis-angle instead of going through eulers. This is currently enabled by the checkbox for the 'label' of the Lock Rotation column.
- The naming of the property in RNA + the way this is presented in the UI can get some work done.
- The setting for the 'w' component for quats/axis-angle is currently a separate flag in RNA, since I can't figure out how to lump this in under the 'lock_rotation' property instead (i.e. getting that to be either 3 or 4 components, depending on whether per-component locking is enabled).
- Editing values directly should not be possible when these locks are set...

* Fixed some tools which made use of this

Rotation Math:

Replaced a few function calls with inlined code for nicer performance.

2.5 - More work on Axis-Angle Rotations

* Added a few new methods for axis-angle conversions, and used these instead of manually performing those steps elsewhere
* Axis-angles to other representations now get their axes normalised to make sure that odd scaling doesn't occur.
* Made a few more tools work with axis-angles properly

2.5
Revert some changes from commit 23090. Make sure you update SVN before you commit!!

2.5, Fix for bug #19296:
render window escape incorrectly opens file browser.

client code wasn't modified to follow changes in the model

curve twist
* added new twist method - "Tangent", suggested by Martin.
the nice thing about this is its stable no matter how you rotate the data, rotation is local to each segment.
* added smooth option that smooths the twisting (before applying user twist), to workaround Z-Up and Tangent's ugly curve twisting. Id prefer not to have this however it makes tangent much nicer. Possibly tangent can be improved some other way and this can be removed.
A smooth value of 1.0 will iterate over and smooth the twisting by the resolution value of the spline.
* Minimum-Twist method now corrects for cyclic twist by taking the roll difference between first and last, then increasingly counter rotate each segment over the entire curve. Previously it calculated from both directions and blended them.

details
* BevPoints use quats rather then 3x3 matrix.
* added BevPoint direction "dir" and tangent "tan" used only for 3D curves.
* don't calculate BevPoint->cosa, BevPoint->sina for 3D curves.
* split bevel tilt calculation into functions.
* nurbs curves currently don't generate tangents and wont work with tangent twist method.
* some of the use of quats should be optimized.
* smoothing is not animation safe, the higher the smoothing the higher the likelyhood of flipping.