Faster chunkedStream_getByte()
Prevent CMapFactory.create from failing by passing the necessary parameters from PartialEvaluator_readToUnicode (issue 5010)
use getBytes() instead of looping over getByte()
Add |fillRgb| method to LabCS
Fixes mesh fill pattern with optional matrix (#5020)

In the referenced issue, there is a PDF which uses a fill pattern which does not
have a matrix defined. This causes singularValueDecompose2dScale to fail with
undefined property error when accessing elements of that matrix.

This fix will only use the matrix when it is defined. The output for the PDF in
question now looks identical to chrome and preview with respect to the gradient
fill pattern.
Merge pull request #5005 from fkaelberer/faster_ChunkedStream_getByte

Faster chunkedStream_getByte()
Merge pull request #5021 from CodingFabian/issue-5020

Fixes mesh fill pattern with optional matrix
Adjust the tabindices in the viewer

The current way that the tabindices are defined, has the unfortunate consequence that adding a single button to the UI might mean having to change almost all tabindices. (This was the case in e.g. PR 4329.)

This patch attempts to avoid that situation happening again, by re-defining the tabindices slightly.
Merge pull request #5062 from Snuffleupagus/adjusted-viewer-tabindices

Adjust the tabindices in the viewer
Merge pull request #5037 from Snuffleupagus/issue-5036

Add |fillRgb| method to LabCS
Merge pull request #5012 from Snuffleupagus/issue-5010

Prevent CMapFactory.create from failing by passing the necessary parameters from PartialEvaluator_readToUnicode (issue 5010)
Adds ImageData set support for legacy safari
Merge pull request #5068 from yurydelendik/imgdata-safari

Adds ImageData set support for legacy safari
Revert commit fc73e2e (PR 5005) for breaking certain PDF files
Merge pull request #5069 from Snuffleupagus/revert-5005

Revert commit fc73e2e (PR 5005) for breaking certain PDF files
Fix another seac regression (issue 4801)
Merge pull request #4995 from Snuffleupagus/issue-4801

Fix another seac regression (issue 4801)
Added an help button in the menu that displays a guided tour of the UI