[SVN] r8100

• add system dialogs (load, save, and color picker) patch from Hans-Joerg Bibiko.

Some more info here http://article.gmane.org/gmane.editors.textmate.general/21340

The ColorPicker nib is supposed to go into TM_SUPPORT_PATH/nibs, but I would prefer the code to be updated
to load it from the plug-in bundle.
The accessory nib is (AFAIK) just an example.

Changed:
A   branches/Dialog PlugIn System Dialogs/
U   branches/Dialog PlugIn System Dialogs/Dialog.h
U   branches/Dialog PlugIn System Dialogs/Dialog.mm
A   branches/Dialog PlugIn System Dialogs/nibs/
A   branches/Dialog PlugIn System Dialogs/nibs/ColorPicker.nib/
A   branches/Dialog PlugIn System Dialogs/nibs/ColorPicker.nib/classes.nib
A   branches/Dialog PlugIn System Dialogs/nibs/ColorPicker.nib/info.nib
A   branches/Dialog PlugIn System Dialogs/nibs/ColorPicker.nib/keyedobjects.nib
A   branches/Dialog PlugIn System Dialogs/nibs/accessory.nib/
A   branches/Dialog PlugIn System Dialogs/nibs/accessory.nib/classes.nib
A   branches/Dialog PlugIn System Dialogs/nibs/accessory.nib/info.nib
A   branches/Dialog PlugIn System Dialogs/nibs/accessory.nib/keyedobjects.nib
U   branches/Dialog PlugIn System Dialogs/tm_dialog.mm