Magnet fixes and code simplifications for Dialog Previews.[optigon]
Return valid selection from vs_to_loop when empty.
Fix showing bump/normal-maps if object was not completly uv-mapped.
Implement show_normal_maps menu toggle

Only the menu entry was implemented, not the actual code.
Cleanup shader handling and fix normal shaders on older gl versions

Do not test texture available in shader, instead set it as a material
property, this should work on mac's and older OpenGL implementations.
Mac file dialog plug-in: Don't try to use 'gcc-4.0'

There is no longer any gcc-4.0.
Mac: Force 32-bit build

The latest version of Xcode defaults to a 64 bit build.
Update Wings3d.xodeproj for Xcode 4.5.2
MyController.m: Eliminate warnings

The first argument for NSLog() should be a format string, not an
arbitrary string.

The Gestalt() function is deprecated starting in OS X 10.8.
Since the only purpose of the call was to avoid running on too old
versions of OS X, we can simply remove the call since the deployment
version set in the binary will server the same purpose.
mac_wings_image_drv.m: Fix use of deprecated function
wp8_mac_file: Use the new Mac file dialog in esdl
Mac: Add support for code signing
Fix build error (warning)
Merge remote branch 'optigon/rj/dialog_preview_fixes'
Merge remote branch 'optigon/rj/vs_to_loop_fix'
Fix old OpenGL lighting

Only shaders worked, old lighting was messed up in the prev commits
Merge branch 'dgud/normalmap-bug'
Merge branch 'dgud/build_error'
Fix building on 64b system

Got broken in the macosx patch