Add internal functions for "shaped runs" output.

Allow polymorphism in writing golden tests.

Refactor pretty printing for golden tests.

Test effect of paragraph prefix.

Document considerations for beginsText/endsText.

Add test for Devanagari.

Reduce test dependencies on fonts.

Properly use ICU locale identifiers.

Fix typo in comment.

Bump version to 0.1.0.1.

Fix version number in changelog.

Fix test warnings.

Declare Hspec version bounds.

Loosen dependency bounds.

Update documentation.

Clarify spanLanguage and add basic ICU conversion.

Remove (~) operator from ParagraphConstruction.

The tilde operator was causing compilation errors with older versions
of GHC, possibly due to a conflict with the lazy pattern match syntax.

It has been replaced by a pure Haskell alternative that uses function
application.

Fill changelong and prepare for v1.0 release.

Refactor line breaking.

Test forming and breaking ligatures.