CMake builds
- CMakeLists.txt: Fixed /usr/local/lib/pkgconfig for debug builds
- CMakeLists.txt: Remove qhull_SHARED and qhull_SHAREDP from 'make all'
  Remove qhull_SHARED and qhull_SHAREDP from qhull_TARGETS_SHARED
  Use reentrant Qhull (libqhull_r) for user code
- CMakeLists.txt: If "MSYS Makefiles", change the default CMAKE_INSTALL_PREFIX to "/usr/local"
  Remove WIN32 conditionals from MAN_INSTALL_DIR and DOC_INSTALL_DIR
- CMakeLists.txt: Add 'uninstall' to delete the files listed in install_manifest.txt
- CMakeLists.txt: If LINK_APPS_SHARED, link qhull applications to libqhull_r.so [S. Bruens #69]
  If BUILD_STATIC_LIBS=OFF or BUILD_SHARED_LIBS=OFF, exclude those libraries [S. Bruens #69]
  libqhullcpp and user_eg3 are built only if BUILD_STATIC_LIBS is true
- CMakeModules/CheckLFS.cmake: Moved CMakeModules to the build/ directory
- CMakeLists.txt: Replace rbox_SOURCES(etc.) with a source file, either reentrant or non-reentrant
- CMakeLists.txt: Add deprecated libqhull and qhull_p to "# Additional build targets"
  If not MSVC, add qh_QHpointer to user_egp_DEFINES and qhullp_DEFINES (otherwise qh_lib_check fails)

Other builds
- build/README-build.txt: Add description of build/ directory
- build/qhull*.sln: Remove qhull_p and qhull_p.dll, retain the corresponding DevStudio project files
  Remove libqhull and qhull.dll, retain the corresponding DevStudio project files
- Makefile: Add libqhull_r/libqhullstatic_r.a to 'cleanall'
- Makefile: Add note about installing debug libraries (e.g., libqhull_rd)
- Makefile,libqhull*/Makefile: Copy README.txt,...,Changes.txt and html/* to ABS_DOCDIR
- Makefile,libqhull*/Makefile: Add target 'uninstall' to delete installed Qhull files
- libqhull/qhull-exports.def,qhull-nomerge-exports.def: Add qh_nextfacet2d

Documentation
- html/qh-code.htm: Add request for Doxygen documentation of the C++ interface
- html/index.htm,etc: "Contents" instead of "Table of Contents"

Testing
- eg/make-qhull_qh.sh: Redo help prompt
- eg/make-qhull_qh.sh: Create src/qhull_qh/_QH_CONVERTED_FILES as a safety check
- eg/make-qhull_qh.sh: Require destination directory and _QH_CONVERTED_FILES for 'sed-only'