fix js and php errors in query editor to allow saving queries, closes #219, wtf was that
create more cache directories
skip wrong test
fix phpuni build dependencies
forward Erfurt
add api documentation link
fix notices on missing optional values, issue #219
only add prefixes to query if they are not there, closes #217
do not append active/active params to URL in tabs, closes #232
Fix problems with rewriting under centos
add schema image property
forward Erfurt
add direct link configuration (related to issue #233)
Revert "add direct link configuration (related to issue #233)"

This reverts commit 5ddd1f533ac209845572a3f491c7c36e48864f1d.
add way to go directly to resource props from nav box
initial feature: new creation / add data procedure
add a new extensible create model action (and TODOs)
fix add action, provice some user convenience
first stub for basic import extension
include descriptions