Searches for linux icon in default folders. Adds url argument passing and add url scheme definitions.

resources/install/debian/jitsi.desktop.tmpl

@@ -3,8 +3,9 @@ Name=_APP_NAME_
 GenericName=_APP_NAME_
 Comment=VoIP and Instant Messaging client
 Keywords=chat;messaging;im;voip;video;call;conference;
-Icon=/usr/share/pixmaps/_PACKAGE_NAME_.svg
+Icon=_PACKAGE_NAME_
 Type=Application
 Categories=Network;InstantMessaging;Chat;Telephony;VideoConference;Java;
-Exec=_PACKAGE_NAME_
+Exec=_PACKAGE_NAME_ %u
 Terminal=false
+MimeType=x-scheme-handler/sip;x-scheme-handler/xmpp;