Merge pull request #713 from github/semantic-source-0.2.0.1

semantic-source 0.2.0.1

Merge pull request #687 from github/pathological,-part-one

Drop pathtype, part one

Clean up unused deps

Bump the semantic-source version + update changelog.

Merge pull request #426 from github/semantic-source-0.0.1.0

semantic-source 0.0.1.0

Merge pull request #307 from github/semantic-source-ghc-8.8.1

semantic-source-0.0.0.1/ghc-8.8.1

Merge pull request #269 from github/semantic-source

Factor source code-related facilities into a new package

Merge pull request #230 from github/lingo

Switch over to using lingo for language detection

Merge pull request #213 from github/git-ls-tree-fixes

Git ls tree fixes

Merge pull request #213 from github/git-ls-tree-fixes

Git ls tree fixes