0.1.4-m3

This release contains corrections to page size support and improvements to the reliability of job cancellations:

• Fix next largest integer divisible by four routine in paper.c.
• Use CUPS status codes and reply sizes to determine which job cancellation cleanup procedures are needed.
• Enforce 10mm margins for envelope sizes, as done by the original drivers.

The manufacturer name in the PPD files no longer includes registration details (Canon Inc is now just Canon) in order to match conventions followed by other drivers. This keeps driver lists clean and tidy. Thanks @sbn001

Raspbian compatibility issues are still under investigation, fixes do not apply to LBP3010.