Define JSON_C_HAVE_INTTYPES_H in json_config.h.win32 only

* Add ifdef C++ extern "C" to headers
  * Use simpler definition of min and max in bits.h
    Larry Lansing, llansing at fuzzynerd dot com

  * Remove automake 1.6 requirement
  * Move autogen commands into autogen.sh. Update README
  * Remove error pointer special case for Windows
  * Change license from LGPL to MIT
    Michael Clark <michael@metaparadigm.com>


git-svn-id: http://svn.metaparadigm.com/svn/json-c/trunk@10 327403b1-1117-474d-bef2-5cb71233fd97

Added a Win32/Win64 compliant implementation of vasprintf
  * debug.c - C. Watford (christopher dot watford at gmail dot com)
    Removed usage of vsyslog on Win32/Win64 systems, needs to be handled
    by a configure script
  * json_object.c - C. Watford (christopher dot watford at gmail dot com)
    Added scope operator to wrap usage of json_object_object_foreach, this
    needs to be rethought to be more ANSI C friendly
  * json_object.h - C. Watford (christopher dot watford at gmail dot com)
    Added Microsoft C friendly version of json_object_object_foreach
  * json_tokener.c - C. Watford (christopher dot watford at gmail dot com)
    Added a Win32/Win64 compliant implementation of strndup
  * json_util.c - C. Watford (christopher dot watford at gmail dot com)
    Added cast and mask to suffice size_t v. unsigned int conversion
    correctness
  * json_tokener.c - sign reversal issue on error info for nested object parse
    spotted by Johan Bj�rklund (johbjo09 at kth.se)
  * json_object.c - escape " in json_escape_str
  * Change to automake and libtool to build shared and static library
    Michael Clark <michael@metaparadigm.com>


git-svn-id: http://svn.metaparadigm.com/svn/json-c/trunk@4 327403b1-1117-474d-bef2-5cb71233fd97