Bump to version 0.8.4.3.1 (pdfkit#475)

Version bump to 0.8.4.3 (pdfkit#474)

* Version bump to 0.8.4.3

Merge pull request pdfkit#463 from pdfkit/0.8.4.2-bump

Version bump to v.0.8.4.2

Merge pull request pdfkit#463 from pdfkit/0.8.4.2-bump

Version bump to v.0.8.4.2

Version bump for bug fixes

Missing version bump

version 0.8.2

PDFKit version 0.8.1

Merge pull request pdfkit#315 from cdwort/release_0.7.1

Release 0.7.1

Release v0.7.0