Merge branch 'release/0.9.0'
Merge branch 'release/1.0'
bump hotfix version to 1.0.1
documentation and tips for running import_covers script

[#78724002]
documentation and tips for running import_covers and import_pages scripts

[#78724002]
add .TIF pattern when looking for page images for volumes

[Finishes #78682220]
add sample configs for email error messages
workaround to avoid pdfminer max recursion error with pdf outlines

[#78724532]
add templates for 404/403/500 pages, using eultheme error styles

[#78682236]
document changes in 1.0.1
Merge branch 'hotfix/1.0.1' into develop