Pcbnew, Module Editor: fix bug 707692 and other potential crashes (when having a block command in progress and try to make an edit command)

This was due to a duplicate constants ( with sligtly different values)  used to select items in some seach functions that broke filtering. Old definitions removed.

* Move schematic wire and bus break code into schematic screen object.
* Move schematic test for dangling ends into schematic screen object.
* Remove left over debugging output in schematic screen object.
* Remove unused file eeschema/cleanup.cpp.
* Fix bug in schematic line object hit test algorithm.
* Fix a string concatenation compile error added in r2752.
* Rename class WinEDA_BasicFrame to EDA_BASE_FRAME.
* Rename class WinEDA_DrawFrame to EDA_DRAW_FRAME.
* Rename class WinEDA_DrawPanel to EDA_DRAW_PANEL.

Minor others fixes and enhancements

Pcbnew: bug fix: m_ZoneMinThickness parameter not copied in zone copy function. In copy block, copied zones have an erroneous m_ZoneMinThickness parmeter value.

* Encapsulate file name member of base screen object.
* Encapsulate associated screen member of schematic sheet object.
* Create add screen method to schematic sheet object to simplify setting
  the associated screen.
* Move the change file name code in the schematic sheet object to the edit
  sheet method in the schematic editor frame object to eliminate message
  dialogs.
* Improve reference counting in schematic screen object.
* Add helper type definitions for changing schematic object storage to C++
  containers.

Other minor fixes

  * TokenList2DsnLexer.cmake now supports comments, which start with a leading
    # character, and may be either on their own line or on a line after a token.
  * DSNLEXER::PopReader() now pops even the last LINE_READER* and returns it.
++pcbnew:
  * SPECCTRA_DB now inherits from new class SPECCTRA_LEXER, which led to a great
    deal of simplification and code factoring.
  * Moved specctra keywords into specctra.keywords.

Eeschem: fix bug when moving fields in schematic: incorrect field move for rotated+mirrored components
(added InverseTransform( ) in TRANSFORM class)

Modedit: fix issues when printing a footprint. But needs refinement. Work in progress (mainly "Fit in page" is not working).
Minor code cleaning

Very minor enhancement in module edition dialogs.
Fix a minor bug in design rules editor: in Global Rules Edition: drill values > via diameter not checked
and the first item (track or via) in list was not checked (explains Bug 702177, that is not really a bug)

Pcbnew: fix that prevents loading modules from libraries (footprint name not identified in lib)
Module Editor: Try to fix incorrect printing. Fixed now only for scale 1. Nor working for other scales. (Work in progress).
Gerbview: Known bug: printing not working.
VRML export: Fix incorrect export of 3D shapes rotations when the 3D shape was rotated.

Eeschema: minor enhancement: When a netlist is created and a component is not yet annotated, the annotate dialog is called from the netlist dialog
(no need to close the netlist dialog, open  the annotated dialog and reopen the netlist dialog).

Add edit menu and right-click menu items to pcbnew for resetting module and other text field sizes to current defaults set in Preferences->Dimensions->Texts and Drawings.

* Schematic reference object now completely encapsulated.
* Schematic reference list object refactoring complete.
* Make OK default button in PCBNew block operation dialog.

Pcbnew: Bug fix: arcs in modules outlines (when flipped) were incorrectly saved and read  in .brd files.
this was due to incorrect macro NORMALIZE_ANGLE (was the same as NORMALIZE_ANGLE_POS), now modified and renamed NORMALIZE_ANGLE_360

  * Added the basic structure to the Sweet parser in sch_part.cpp.
  * Got inheritence working off of the 'extends' keyword and PART::inherit()
  * Tossed the units support out of sweet.keywords, since we agreed to go dimensionless.
++richio:
  * Added the problemInputLine support to PARSE_ERROR, so UI can show the
    offending line of bytes.  Yes bytes, not even guaranteed to be characters.

Eeschema: in component properties dialog, add control for fields texts justification, like in Libedit.
Fix some Doxygen warnings.

Eeschema: fix issues in drag command (mainly hotkey command and forgotten wire ends connected to components to drag).
 Rename EDA_Rect::Inside to EDA_Rect::Contains ( EDA_Rect::Inside( const EDA_Rect& aRect ) was very ambiguous )
 Fix some Doxygen warnings and erroneous comments; Add comments.

Minor cosmetic enhancements.
commint forgoten files in boost lib.