[tool] adapt --inspect option
[db] do not truncate paths that fit the term width
[diagnose] fix missing reference to ioopen() (thanks, Robert\!)
[diagnose] adapt to new index structure
Merge branch 'master' of github:phi-gamma/luaotfload
[diagnose] test permissions of gzipped index
Merge pull request #154 from phi-gamma/master

fixes, mainly to diagnostics