fix(welcome): update links and colors (refs #5063)
Merge pull request #1337 from txiki31/3.2-integration

fix(welcome): update links and colors (closes #5063)
fix(error): move register_shutdown_function to root index (refs #5046)
fix(error): Correct error message in Doc::setValue (refs #5048)
feat(doctitle): add extra search when title is not a part of document itself (refs #5048)
fix(enum): get kesy when index is null (refs #5048)
fix(session): correct cookie session path (refs #5051)
feat(doc): add new options to formatCollection (refs #5048)
feat(test): add testDirectory attribute (refs #5052)
version(version): 3.2.18
feat(cvdoc): add cvdoc::getDisplayableViews() method (refs #5038)
fix(session): correct cookie session path (refs #5051)

Correct cookie session path for direct directory url
feat(vault): Add VaultManager and tmp file (refs #5049)
fix(session): Correct session path (refs #5051)
fix(formatCollection): use null value in array like un single value when no value are set (refs #4994)