add stubs for location functions.
add jsTree javascript library.
include new library.
Merge branch 'master' into topic/jstree
a embryonic version of a tree-based trial page.
add AJAX code for generating pages for trials.
check for nullness.
double click opens trial page, download link activates only on leaf nodes... :-)
remove alerts.
implement rudimentary multiple download feature.
add a csv download.
tweak position of buttons.
make downloads with complete trial info possible.
double click on node will link to the trial page.
fix search by breeding program name
Merge branch 'master' into topic/trial_location
associate a projectprop for location, use this in trial creation and trial search.
start implementing trial type.
Merge branch 'topic/jstree' into topic/trial_location
also retrieve the rep for each measurement.