Avoid warnings about non-existing include directories with Embarcadero compiler
Rename EMaskOrient to EMaskOrient_FD to avoid redefinition compiler errors
[clang-warning-fix][deprecated-increment-bool]

In file included from /oce/drv/Image/Image_DColorImage_0.cxx:
63:
/oce/src/Image/Image_GImage.gxx:904:16: warning: incrementing
 expression of type bool is deprecated [-Wdeprecated-increment-bool]                  YAxisMirror++ ;
                  ~~~~~~~~~~~^
/oce/src/Image/Image_GImage.gxx:908:16: warning: incrementing
 expression of type bool is deprecated [-Wdeprecated-increment-bool]                  XAxisMirror++ ;
                  ~~~~~~~~~~~^
/oce/src/Image/Image_GImage.gxx:927:16: warning: incrementing
 expression of type bool is deprecated [-Wdeprecated-increment-bool]
                  XAxisMirror++ ;                  ~~~~~~~~~~~^3 warnings generated.
[clang-warning-fix][deprecated-increment-bool]

This commit fixes the warning reported by clang-3.4:
oce/src/BRepAlgo/BRepAlgo_Tool.cxx:90:9: warning: incrementing expression of type bool is deprecated [-Wdeprecated-increment-bool]
          NbSub++;
MinGW doesn't support _create_locale or _free_locale

MinGW has limited support for locale-specific functionality used in the recently merged OCCT 6.6.0
MinGW doesn't support the locale functionality that MSVC does

MinGW has limited support for locale-specific functionality used in the recently merged OCCT 6.6.0
MinGW doesn't support locale-specific I/O functions

MinGW has limited support for locale-specific functionality used in the recently merged OCCT 6.6.0
Merge pull request #405 from tpaviot/review/MinGWLocaleFixes

Fix locale-related errors for MinGW
Merge pull request #401 from tpaviot/review/warning-non-existing-directories

Avoid warnings about non-existing include directories
Merge pull request #402 from tpaviot/review/EMaskOrientFix

Rename EMaskOrient to EMaskOrient_FD to fix compiler errors
Merge pull request #404 from tpaviot/review/standard-bool-warning-fix

Clang warning fix : deprecated-increment-bool
Minor changes in previous entries
Add release notes for OCE 0.13
Merge pull request #407 from tpaviot/review/release-notes-0.13

Add release notes for OCE 0.13
Set version number to 0.13
Merge pull request #408 from tpaviot/review/release-0.13

Set version number to 0.13
Bumped version number to 0.14-dev
Avoid using NULL in pointer arithmetic (-Wpointer-arith)

http://msdn.microsoft.com/en-us/library/windows/desktop/aa364934%28v=vs.85%29.aspx says that the return value is zero anyway if the function fails.
Avoid using NULL in pointer arithmetic (-Wpointer-arith)

Length() returns Standard_Integer, okay to compare to 0
Avoid redefinition of M_SQRT2

Really this line could just be "#if !defined(M_SQRT2)"