fixes if package is removed before being configured

lam-packaging/debian/postrm

@@ -6,7 +6,10 @@ if [ -f /usr/share/debconf/confmodule ]; then
 	. /usr/share/debconf/confmodule
 	db_version 2.0 || [ $? -lt 30 ]
 
+  set +e
 	db_get "ldap-account-manager/config-webserver"
+	if [ $? -eq 0 ]; then
+		set -e
 		webservers="$RET"
 		restart=""
 		for server in $webservers; do
@@ -19,8 +22,12 @@ if [ -f /usr/share/debconf/confmodule ]; then
 								;;
 				esac
 		done
+	fi
+	
+	set +e
 	db_get "ldap-account-manager/restart-webserver"
-	if [ "$RET" = "true" ]; then
+	if [ $? -eq 0 && "$RET" = "true" ]; then
+		set -e
 		for server in $restart; do
 				server=${server%,}
 				if [ -x /usr/sbin/invoke-rc.d ]; then
@@ -30,10 +37,10 @@ if [ -f /usr/share/debconf/confmodule ]; then
 				fi
 		done
 	fi
+	
+	set -e
 	if [ "$1" = "purge" ]; then
 		rm -r -f /usr/share/ldap-account-manager; rm -r -f /var/lib/ldap-account-manager; fi
-	
-	if [ "$1" = purge ] && [ -e /usr/share/debconf/confmodule ]; then
 		db_purge
 	fi