I moved the panel to the properties region in the 3D view for now.
This operator might also become a tool at some point.

Reviewers: brecht

Differential Revision: https://developer.blender.org/D3868

Differential Revision: https://developer.blender.org/D3746

Bump version to 1.1.4
Remove some dead code
Use register class instead of register_module

Adress the F6 redo menu Blender crash issue by:
1) Moving the properties from the operator to a property group
of window manager type (bpy.types.WindowManager.ivy_gen_props)
2) Only the update is exposed in the operator undo (a boolprop)
3) Settings moved into the CURVE_PT_IvyGenPanel located under the
Tools Region > Create > Ivy Generator

Functionality should be the same as before:

Since the window manager props are not jumping back on operator redo
the operator just pulls them in execute which allows change in the Panel
while operator is still active

The default values are assigned by setting the operator defaultIvy to True

Bump version to 0.1.2
Fix the error with passing objects data that didn't
have at least one polygon to functions expecting them
(like closest_point_on_mesh) added a check for len > 0

Imports as tuples
Consistent prop definitions
Small Pep8 cleanup
Don't use sum as a var name (replaced with sums)
Update wiki link

make addons blender versions consistent

finished

Plus a few styling enhancements.

[[Split portion of a mixed commit.]]

* General Rule (for Ivygen and Sapling): If you need more code for declaring the layouts than for the props itself, something is wrong. ;-)
* if > elif

- Fixed an issue where 'Add New Ivy' and 'Add New Default Ivy' did nothing
- Updated Blender version to 2.59
- Updated Blender revision to 39307

also made some small style changes and commented unused function.

[[Split portion of a mixed commit.]]