Prevent null pointer
Added whitelisting for folders
Whitelisting for subdomains

Closes #1418
Refactoring
1.99.52 beta
Updated support section
Formatting support section
Updated support section
Perfection ...
Updated support section
Restrict all view action and show parameters

Closes #1419
Updated changelog
Updated FAQ
Fixed typo
Fixed another typo
Whitelist view actions

Refs #1419
Updated changelog
Improved usage data layout

Closes #1424
Updated FAQ
Warn for IllegalStateException (support info)