prefer libs build from source over the system
Create "add_source_version_token"
Add tests for interpolation behavior
Implement interpolation of %v token
Add API documentation for %v
Add the download version if available.
Add configuration type to item under test

Add configuration class that Module::Build is able to use.

See Perl-Toolchain-Gang/Module-Build@ffdcbb57af5bca0f319177b9d0164581da70605c for the commit that started this behavior.
Use a real builder object

Use a real builder object instead of faking the internals
Merge pull request #34 from MidLifeXis/add_source_version_token

Add source version token
Merge pull request #36 from MidLifeXis/fix_validation_test

Add configuration type to item under test. Closes #35.
prepare for 0.004 release
META again
update copyright dates
Correct a test regression

If t/interpolate is run twice between a "build distclean", a value
set in the test is retained across test runs.
Rename the config variable to be alien specific
Reset config info after test
fix the splitting of linker flags on Windows

see issue <https://github.com/Perl5-Alien/Alien-Base/issues/41>.
Handle pkg-config returning no packages
Handle no pkg-config returns in yy-system_installed.t
Merge pull request #44 from Perl5-Alien/version-robuster

Handle pkg-config returning no packages