Tidy up buildwrappers.sh for *.hpp
Include chaiscript (v4 & v5) headers into source as includes.
Change configure.ac to select chaiscript version based on compiler.
Update linux docs.
Remove chaiscript as pkg dependency.
Add chai headers for tarball dist. Mod debian rules.
Fix flag variable for tarball and out-of-src builds.
clang c++11 logic. Removed redundant clang flags.