Issue 1151: Add share to LLAvatarActions

Syncs LLGiveInventory and LLFloaterAvatarPicker with upstream.
Syncsyncsync~

Translators:
menu_inventory.xml menu_radar.xml and menu_avs_list.xml: Share
notifications.xml: ShareNotification, ShareItemsConfirmation, ShareFolderConfirmation, ItemsShared
strings.xml: share_alert

indra/newview/app_settings/settings.xml

@@ -5084,6 +5084,39 @@ This should be as low as possible, but too low may break functionality</string>
       <key>Value</key>
       <integer>0</integer>
     </map>
+    <key>ContextConeInAlpha</key>
+    <map>
+      <key>Comment</key>
+      <string>Cone In Alpha</string>
+      <key>Persist</key>
+      <integer>0</integer>
+      <key>Type</key>
+      <string>F32</string>
+      <key>Value</key>
+      <real>0.0</real>
+    </map>
+    <key>ContextConeOutAlpha</key>
+    <map>
+      <key>Comment</key>
+      <string>Cone Out Alpha</string>
+      <key>Persist</key>
+      <integer>0</integer>
+      <key>Type</key>
+      <string>F32</string>
+      <key>Value</key>
+      <real>1.0</real>
+    </map>
+    <key>ContextConeFadeTime</key>
+    <map>
+      <key>Comment</key>
+      <string>Cone Fade Time</string>
+      <key>Persist</key>
+      <integer>0</integer>
+      <key>Type</key>
+      <string>F32</string>
+      <key>Value</key>
+      <real>.08</real>
+    </map>
     <key>CookiesEnabled</key>
     <map>
       <key>Comment</key>