[FEATURE] Add directory menu VH as discussed in #44
[TASK] Increase source readability
[BUGFIX] Move Asset's contentPostProc hook slightly upwards in stack

This allows the Assets to function in the case of a cached context combined with no user being logged in when page is being cached.
[TASK] Fix indentation
Merge pull request #46 from dreipunktnull/viewhelpers/page/menu/directory

[FEATURE] Add directory menu VH as discussed in #44
[BUGFIX] Employ dual Asset hook to support case of zero USER_INT objects