Update project dependencies

Merge pull request #13 from LAHTeR/update_dependencies

Relax dependencies, update to pagexml-tools v0.4.1.

Add Language Identification

v0.3.0

Bump version to 0.3.0.

Fix tag/version sync

v0.2.2

Bump version: 0.2.1 → 0.2.2

Add Zenodo

v0.2.1

Bump version: 0.1.5 → 0.2.0

Skip empty pages

https://pypi.org/project/text-quality/0.2.0/

Publish package on PyPi

v0.1.4

Bump version to 0.1.4. #2

Upgrade readxml-tools

Use readxml-tools v0.3.3 to fix PageXML reading issues.
knaw-huc/pagexml#7

Handle PageXML errors

v0.1.2

Bump version to 0.1.2.

Pin dependency versions

v0.1.1

Bump version to 0.1.1.

Initial release

v0.1.0

Update documentation, references.