Qhull 2015.0.3

 - qh_mem, qh_merge: Log before 'delete' instead of afterwards [Coverity, K. Schwehr]
 - qh_merge: Test for NULL horizon in qh_checkzero [Coverity, K. Schwehr]
 - qh_matchneighbor: Check for matchfacet not a neighbor of facet [Coverity, K. Schwehr]
 - qh_triangulate: Explicit check for visible==NULL [Coverity, K. Schwehr]
 - qh_findbestfacet (unused by qhull): Fix test of isoutside [Coverity, K. Schwehr]
 - qh_check_maxout: Check bestfacet!=0 for logging its id [Coverity, K. Schwehr]
 - qh_nearvertex: Check for bestvertex not found [Coverity, K. Schwehr]
 - qh_checkfacet: Check for missing neighbors of simplicial facets [Coverity, K. Schwehr]
 - qh_setdelnth: Check 'nth' before using it [Coverity, K. Schwehr]
 - Annotate code for Coverity warnings (most of these protected by qh_errexit) [K. Schwehr]

 - qh_printfacet3math: explicit format string (duplicates change to io.c) [B. Pearlmutter]
 - libqhull_r.h: fix spelling error (duplicates change to libqhull.h) [B. Pearlmutter]
 - unix_r.c: fix spelling error (duplicates change to unix.c) [B. Pearlmutter]
 - qhull_a.h: define qhullUnused() only if defined(__cplusplus) [R. Stogner]
 - qh_version: Use const char str[]= "string" instead of const char * str= "string" [U. Drepper, p. 27]
 - qh_newvertex: Use UINT_MAX instead of 0xFFFFFFFF
 - qh_newridge: Use UINT_MAX instead of 0xFFFFFFFF
 - Reviewed FIXUP notes

 - QhullRidge_test: t_foreach use 'foreach(const QhullVertex &v, vertices)
 - Made '#include "RoadTest.h" consistent across all C++ tests

 - qh-code.htm: May also use libqhull_r (e.g., FOREACHfacet_(...))
 - qh-get.htm: Add list of download build repositories

 - Add CMakeModules/CheckLFS.cmake: Enables Large File Support [B. Pearlmutter]
 - Makefile: Use -fpic at all times instead of -fPIC, [U. Drepper p. 15]