update to new Zend/OpenLayers/Prototype versions

diff --git a/library/Zend b/library/Zend
index ed28a5569f7d699332c60fa9b1067c9e3ad9b66b..1d02476829ea0d2077d45edfc44b8515b661c42e 160000 (submodule)
--- a/library/Zend
+++ b/library/Zend
@@ -1 +1 @@
-Subproject commit ed28a5569f7d699332c60fa9b1067c9e3ad9b66b
+Subproject commit 1d02476829ea0d2077d45edfc44b8515b661c42e

diff --git a/public/openlayers b/public/openlayers
index 665b2d16eb272283a3a4604e1d37178a7c5249e7..6f1f6b616d1567853c0dc7a34bab822ba60daf22 160000 (submodule)
--- a/public/openlayers
+++ b/public/openlayers
@@ -1 +1 @@
-Subproject commit 665b2d16eb272283a3a4604e1d37178a7c5249e7
+Subproject commit 6f1f6b616d1567853c0dc7a34bab822ba60daf22

diff --git a/public/prototype b/public/prototype
index ec15b2c0a916725dc56c1d536dc383eaf109b97c..1fb9728ed109cfd682225a13eda13acfb91a94dc 160000 (submodule)
--- a/public/prototype
+++ b/public/prototype
@@ -1 +1 @@
-Subproject commit ec15b2c0a916725dc56c1d536dc383eaf109b97c
+Subproject commit 1fb9728ed109cfd682225a13eda13acfb91a94dc