Remove slow commands check.
Fixes gidStart for CID fonts
Use page promise for text extraction.
Merge pull request #3917 from yurydelendik/issue-3857

Fixes gidStart for CID fonts
Merge pull request #3920 from brendandahl/text-promise

Use page promise for text extraction.
Merge pull request #3916 from brendandahl/remove-slow-commands

Remove slow commands check.
Comment fix: shedule -> schedule