Implement splitting ParagraphLayout into lines.

Implement generic pagination internally.

Bump version to 0.2.0.1.

Remove non-existent extra-source-files.

Add missing files to Cabal package description.

Separate module for the ParagraphLayout type.

Bump version to 0.2.0.0.

Add test for Devanagari.

Bump version to 0.1.0.1.

Declare Hspec version bounds.

Loosen dependency bounds.

Fill changelong and prepare for v1.0 release.

Slightly decompose the Plain module.

Expose ParagraphConstruction.

Use internal library to hide non-public modules.

Move non-public modules into Internal namespace.

Add test for RTL text.

Use ICU to find line break boundaries.

Implement run splitting.

Lay out Runs independently of Spans.