adds a rm_reference.php webservice and fixed the typing from/to ini files
webservice to reference ref_points is ready
first steps of add_reference.php webservice : input validation/sanitization and RefPoint class
small fixes arround site_point::get_all() usage
moved all_points webservice to use methods from site_point
make use of constants
linked the map points to panorama visualization
FIXUP
now displays the circles with the same color as on the pano (sortof...)
Added a display of all the ref_points on the map.