v1.9.0

New experimental feature

FairScan can now be invoked by other Android apps to scan documents and generate PDFs using an implicit intent.
Please consult the README for details.

Many thanks to Tenam Sobti for the initial idea and for providing a working proof of concept.

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Certificate SHA-256 digest: 820710961328e1834bcb8158092e6b6c5b519fcd3bdb2e5319ebdaf08f9ea1e8