Use Servant to provide our test ELPA server
Improve error reporting for failed installations [#143]
Merge branch 'use-servant' into failed-install-error-reporting
Do not ignore -pkg.el files.

Because some servant packages have them.
Remove unused server make task.
Must add an error catch to condition-case.
Add test for cask failed installation.
Allow failures on snapshot.

For now. This is because Servant does not work on snapshot.
Merge branch 'use-servant'
Merge branch 'failed-install-error-reporting'
Release v0.5.1.