Fix header file dependencies and X11 CFLAGS in Makefile.
Delete libraries before updating them.

Makes sure that stale object files are cleared out to prevent
build skew if a file is renamed or removed.
Update Makefile for V8 MacOS X operation.

Link with 64bit by default.
Fix typo in text extraction RTL pass.
Clean out some old renaming scripts.
Assume non-clang compilers support incbin
Do not print invalid hex character in warning

This means that warnings can now be rate limited.
Parse full PDF filespecs, not just filenames