- remove unused imports
- remove/comment unused vars
- fix for some bugs with unused vars being used

removing this module, it wasnt used anywhere and bpy_extras.view3d_utils has view functions like region3d_get_2d_coordinates

fix issue #1 from bug [#27896] B258.0 > X3D export > 3 bugs: "MA_Black".001, lib groups, Rotation 0 0 0 0

replace intersection paint with simplified angle comparison.

remove tricky and not especially good method of finding the point on the path to use to calculate the handles, using the 1/3 and 2/3 works better.

Save as Runtime: We don't need to copy Python for OS X since on OS X the blenderplayer is built with Python already bundled in the .app folder.

- Fix for relative texture paths that contain folders in them.

fix problem on web interface with blacklisted slaves no longer in slave list

better stream handling when uploading files
Might solve the problem with OS X masters

- for windows use case insensitive checks for DLL and EXE extensions.
- copying python libs now works if python is installed onto the system.
- renamed 'Save As Runtime' --> 'Save As Game Engine Runtime', since 'Runtime' is too much a generic term.

add tooltip to address [#27798] .OBJ Import with 'Split' option enabled, skips verts with no face/edge users.

extensions_framework: add ability to set UILayout alert state based on a logical test of PropertyGroup members

update to able to export all action set that matches the bones that some were ignore or couldn't be added in.

- replace line intersection function with mathutils one.
- snap to edge intersection works with object  transforms now.
- clean whitespace

initialize the filepath in the invoke function rather then the menu.

  * Now __pycache__ folders are ignored instead of *.pyc files (the only pyc files are in the __pycachce__ folders)
  * Now 2.58/python/lib is copied over instead of just lib. This allows the runtime to take advantage of Blender's "bundled Python" features. Having the 2.58 folder also allows for other potential files that BGE users might eventually want (e.g., components).