[c23] Added '#embed', which is ignored, for completeness

[tests] Normalize absolute paths when reading CXref-info

[db] Remove a lot of unused Usages so need to bump file format version

[tidy] Remove unused/unnecessary option 'extractAddrParPrefix'

[readme] Update readme

[readme] Update link to Travis status

[db] Removed unused Java related keys from "db" format

Updated file version to 1.7.0

[todo]

[tidy] Edit comments...

[tidy] Random renames