tests for filespec related stuff
tests for register_{build,system}_requires
test for config
tests for register_hook / call_hooks
versions test libfoo
fetch test for libfoo
tests for build and system requires
tests for compile and ffi
refactor test_compile_run_program into a config instead of a constant
build fixes
typo
v0.08_04

  - Add Alien::Install::Example::Libarchive::Installer
  - incremental refactor