Blender Git Loki

Make removal of existing particle systems on copying optional.

This will be most useful when copying individual particle systems
one-by-one (to be implemented).

Merge branch 'master' into gooseberry

Merge branch 'master' into gooseberry

Merge branch 'master' into gooseberry

Added space selection option to the particle system copy operator.

By default this now copies from one object's local space to another
object's local space (instead of the previous world space). This is
more useful when transferring particles between objects, because it
doesn't require moving objects on top of each other, as long as they
have similar shapes.

Merge branch 'master' into gooseberry

Removed debugging code.

Fix for particle system copy: This has to make sure the ORIGSPACE data
layer is available.

Otherwise particle mapping to the new mesh cannot work with subdivided
and constructively-modified meshes.

Added a "specials" menu button next to the particle systems list for
accessing the copy operator.

Changed the workflow for the particle system copy operator to the common
active-to-selected pattern.

New operator for copying (hair) particle systems from one object to
another, including edit data (grooming).

This uses basically the same method as the existing connect/disconnect
feature. The main difference is that it allows working with multiple
objects and transferring the //particle/hair data// instead of the
//mesh// data (which is what connect/disconnect expects). This is a much
more realistic workflow when rigging, topology etc. changes and
groomed hair has to be transferred to the changed model.

Removed unused particles pointer from particle edit data.

Fix T43254: Camera required for rendering sequencer scene

warning: unused var

Merge branch 'master' into gooseberry

New texture influence option for particle kink amplitude (as opposed to
frequency).

Renaming "Kink" texture influence to "Kink Frequency" to be more
specific.

Spiral rotation axis was not always fully normalized, avoid an assert.

Make random child length work again with the spiral kink mode.

Add missing stub to the player, so buildbot keeps delivering gooseberry builds