Mingw, all: remove static link of libgcc, which can create issues when using dll version of wxWidgets.
Therefore libgcc_s_dw2-1.dll should be in the paths for executables.

add libglew-dev prerequisite for debian systems, it pulls in libgl1-mesa-dev and libglu1-mesa-dev on its own

Fixes missing worksheet layout when there is no PCB loaded and all random brightness changes for the Cairo rendering backend.

Pcbnew: Fix incorrect bounding box calculation of texts. Only noticeable with boards conveted from Eagle, which are using other text justification than center.
Eagle plugin: filter and replace not allowed chars in FPID(-':' and '/')  by _ or -, if they are used in Eagle footprint names (otherwise, boards converted and saved under kicad_pcb format are not readable by Pcbnew).

Disable patch from Baranovskiy Konstantin about vertical justification of multiline texts, because it does not work for rotated/mirrored texts

   pass into an HTML rendering panel and otherwise look goofey.
*) Implement BOARD::Move() can call it from EAGLE_PLUGIN::Load().
*) When USE_FP_LIB_TABLE, tolerate blank nicknames in FPIDs coming from eeschema.
   See the switch for this in pcbnew/netlist.cpp as ALLOW_PARTIAL_FPID.
*) Add an assert and a try catch block to figure out that View does not
   like some eagle pcb board.  bitset::set() is getting a -1 value and firing
   an exception.

Pcbnew, compiled with python support: Under windows, force python environment, if the folder python27_us is found in Kicad bin folder (<kicad>/bin, and if  python27_us environment is not fully set (i.e. if python27_us is not in the path, or if PYTHONPATH id not defined.)

<%s> being replaced with '%s' because the former in invisible in html panels.
Cure some compiler warnings.

Pcbnew: fix a crash when a non ascii char (i.e. a char having a code > 127) is found in a text (see Bug #1246340).
Could be only a temporary fix (tested only with French non ascii chars).

Add undo command to dxf file import. Change improper use of __WXDEBUG__ to DEBUG in class_board_connected_item.cpp.

Changed the used framebuffer object extension from ARB_framebuffer_object to EXT_framebuffer_object (compatibility reasons).

dxf import: minor enhancements in dialog. Update libdfxw from git, and uncrustify it. add a test dfx file

* Fix replace bug to handle case sensitivity properly.
* Fix replace bug where the item index was getting updated incorrectly.
* Fix replace infinite loop bug on replace all.
* Make find/replace view update code a separate function.
* Rearrange find/replace trace string to add tracing to EDA_ITEM::Replace().
* Add IsComplexHierarchy method to SCH_SHEET_LIST for future find/replace
  improvements.

Pcbnew, dxf import: Add dialog to choose the board import layer, and the position of dxf coordinates origin

Fix issues created by this patch.
Note, this fix slightly changes the vertical position of these texts.
This is not really a  problem in eeschema, but in pcbnew this is perhaps  more annoying, if the verical multiline text is critical.
Fix a very minor issue  for vertical justification of single line texts in dxf import.

Pcbnew: First work to add a DXF file import to create board outlines. The DXF import is based on DXF lib import/export  from LibreCad.