Sort resolved specifications. Fixes #907.
Make specs green with latest Core changes.
Update CHANGELOG for 0.17
Bump version.
Update integration tests for 0.17.0
Make CACHE_ROOT a Pathname, this is less surprising.
Always create the CACHE_ROOT directory. Fixes #917.
Update CHANGELOG
Update integration test fixtures.
Release 0.17.1
[Examples] Remove lockfiles from source control
[UserProjectIntegrator] Return an absolute path for the workspace.

Closes #920
Changelog
[PathList] Expand excluded folders
[Installer] Remove duplicates form #installed_specs
[LibraryRepresentation] Fix crash in #prefix_header_path
[Command::Spec] Remove FileList references from template
[SourcesManager] Search robustness.

Closes #929
Changelog [ci skip]
[Examples] Remove FileList references [skip ci]

Closes #901