Use XProcSpec's temp-dir variable
Refactoring

- common-java: generalize ResourceLookup interface (does not need to return URLs)
- common-java: ResourceResolver resolves URIs instead of Strings
- common-java: lazy unpacking of individual files in BundledResourcePath
- liblouis: update to liblouis-java 1.2.0-SNAPSHOT and use lou_registerTableResolver
- ...
Property for using an externally installed liblouisutdml only
Remove `-brl-` prefix from Braille CSS properties
Add CSS properties `border`, `margin` and `padding`