When disabling call forward do not remove the destination.

git-svn-id: http://fusionpbx.googlecode.com/svn/trunk@7256 e2954ef0-caed-11de-bd98-e341d93cc3cc
Set the device line_number default to 1.

git-svn-id: http://fusionpbx.googlecode.com/svn/trunk@7257 e2954ef0-caed-11de-bd98-e341d93cc3cc