~jaro/balkon

ref: cf3ec3e35ebdbbe540c0a1490545622157271543 balkon/src/Data/Text/ParagraphLayout/Internal/LineHeight.hs -rw-r--r-- 431 bytes
Fix documentation: document remaining names.
Fix style: white space in exports and imports.
Update documentation and derived instances.
Move non-public modules into Internal namespace.
Implement absolute line heights with half-leadings.