mcpp V.2.6.2 released

MCPP V.2.6.2 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.2.6.1 are as
follows.

* Fixed several bugs of the previous
release.

* Added subroutine-build to use MCPP as
a subroutine from other main program.

* Changed the terms of building methods
in the documents. The building methods
now have two axis:

1. stand-alone-build vs subroutine-build
2. compiler-independent-build vs
compiler-specific-build

Refer to INSTALL #1.
Note that this change of terminology
does not affect the two building methods
of stand-alone preprocessor so far:
'compiler-independent-build' and
'compiler-specific-build'. ('compiler-
independent-build' was called
'stand-alone-build' in the previous
releases).

* Rewrote and converted the text files
in 'doc' and 'doc-jp' directories into
html files.