Fix problem with synctree drag to root

If an item is dragged to root $target=0 and model->getRow($target)
throws error. So this checks for this value.
reset logmessage for every loop in parsing files
Merge pull request #229 from Ben-Ho/3.7-synctree-parent

Fix problem with synctree drag to root
Merge remote-tracking branch 'github/3.7' into 3.7
Simplify viewmap with controller

Work with controller instead of sub-component. This enables possibility
to load only what's needed.
Improve MapView to handle ajax searchQueries

This means storing query-params for request, keep markers already shown
on map to keep popup open.
Add showAlwaysAllMarkers option

To show searchResults next to other markers