Pcbnew: minor code cleanup and enhancement in zone filling. Commit patch from Marco Mattila. Eeschema: minor bug fix about dangling ends. removed obsolete file

Eeschema: fix bug in load_one_schematic_file.cpp: error about files version, that create errors for hierarchical labels.
Pcbnew: cleaning code in block.cpp, and modifye previous way to calculate block size in block command, because old way creates unexpected behavior in block rotate and block flip.
Pcbnew: Fix a bug in plot silkscreen layers.
Cvpcb: Fix compilation issue under MACOX

can be deleted later if they exist in the headers, or moved to 
headers if they should exist in the headers.

Fix bug in PolyLine.cpp, Fix bug in DRC calculations (see changelog). Cvpcb: move dialog files in dialogs/

Eeschema: converted plot PS dialog from Dialogblocks to wxFormBuilder Fixed a minor bug when plotting shapes with filled in background option. Pcbnew: Added locked modules block patch

Libedit: fixed draw artefacts when editing a graphic symbol. fixed minor issues in undo and abort commands when editing graphic items.

Make option not uppercasing component names. I'm so bored with my Eeschema is convert ADuC, Si, component names to ADUC, SI etc., so I contribute this patch so anyone now may keep components

* Fix bug that prevented component from being replaced in library when
  the component root name was changed.
* Fix drawing bug when changing text or field item string while move in
  progress.
* Fix drawing bug when rotating text item while move in progress.
* Prevent undo or redo when editing a component draw item.
* Fix assert bug when replacing component in library when the component
  root name was changed.
* Fix bug in field editor caused by new root alias implementation that
  prevented any field from being changed.
* Fix minor spacing issues with EESchema find dialog.
* Deprecate remaining internal linked list code from component library
  objects.
* Rename pin object files to match new library object file naming
  scheme.
* Move LIB_TEXT object definition into it's own header file.

* All library component object editing is now performed with the ojbect
  except LIB_PIN (coming soon).
* Added TRANFORM class to handle coordinate transforms.
* Remove old transform matrix functions.
* More file renaming to align them with the other component library
  object file names.
* Fix hot key bugs in library editor to disable edit keys while an item
  is being edited.
* Fixed bug when cancelling rotation of text and field objects while
  being moved.

Gerbview: Added support for gerber command   SR (Step and Repeat) and multiple MOIN and MOMM in file