restrict fov according to the longest dimension
main.js: rename POI_list preferences from poi_list to poi
jquery.freepano.controls.js: fix panorama callback
add sphere.updateTexture(callback)
fix POI_list.init()
add class SoundList
jquery.freepano.list.js must be loaded before poi.js
Merge branch 'master' of github.com:/foxelsa/freepano into poi