MCPP V.2.6.1 released

MCPP V.2.6.1 was just released.

MCPP is a portable C/C++ preprocessor, supporting GCC,
Visual C++, etc. Its source is highly configurable and can
generate executables of various specs. It accompanies a
validation suite to check preprocessor's conformance and
quality exhaustively.

The updated points from V.2.6 are as follows.

* Fixed a bug of macro definition in lib.c.
* Fixed a bug of '#pragma once' failure.
* Fixed some other minor bugs.
* Enabled automatic conversion from [CR+LF] to [LF].
* Revised path-list handling on CygWIN. Enabled -mno-cygwin
option for CygWIN GCC-specific-build.
* Added porting to MinGW.