Bugfix for Twig helper functions

Merge pull request #147 from Kunstmaan/fix-node-twig-extension

fix node twig extension

Fix title displayed for hidden pages...

Merge pull request #146 from Kunstmaan/feature/support-hidden-tree-nodes

template fix for "hidden" pages

Support for hidden tree nodes

Merge pull request #145 from Kunstmaan/feature/support-hidden-tree-nodes

support hidden tree nodes

Fixes StructureNode issues

Merge pull request #143 from kimausloos/master

Fixes StructureNode issues

Better naming for Twig get_..._by_internal_name functions

Merge pull request #139 from Kunstmaan/fix-twig-extension-naming

fix naming / reflect standard url & path functionality in get_..._by_internal_name functions

Extra Twig functions to fetch nodes (or their slugs) by internal name

Merge pull request #138 from Kunstmaan/feature/twig_extension_interna…

…l_name_support

extra twig functions to easily fetch nodes by internal name

fix hiddenFromNav caching issue

Merge pull request #137 from Kunstmaan/add_node_children_filter

filter on hiddenFromNav when requested

revert AbstractPage changes

Merge pull request #135 from Kunstmaan/api_changes

revert AbstractPage changes

moved id to AbstractPage class

Merge pull request #134 from Kunstmaan/api_changes

moved the id to the AbstractPage class itself

nodemenu performance improvements

Merge pull request #133 from Kunstmaan/nodemenu_performance

Nodemenu performance improvements